The Count
This archive's own record of the house — read accession by accession from the page images its researchers opened, rather than from any secondary summary — lists eleven seatings of a sultan on the Delhi throne between 1206 and 1290: Qutb-ud-din Aibak's founding accession, and ten successions after it. Sorted by how each king actually came to the throne, the ten successions break down as two of ordinary filial inheritance with no faction recorded as intervening (Aram Shah succeeding his father Aibak in 1210, and Rukn-ud-din Firuz succeeding his father Iltutmish in 1236); one usurpation, where a rival commander took the throne by defeating the incumbent in the field (Iltutmish over Aram Shah, 1211); six installations, where a named faction — chiefs, officers, a father-in-law, a kotwal — raised a candidate to the throne, sometimes over a better-born rival (Razia in 1236, Muizuddin Bahram Shah in 1240, Alauddin Masud Shah in 1242, Nasiruddin Mahmud Shah in 1246, Ghiyas-ud-din Balban in 1266, and Muizuddin Kaiqubad in 1287); and one minority under a hostile faction's control, ending in murder (the infant Kayumars, 1290).
That is a count worth stating plainly: eight of ten successions after the founder's own death involved a faction seating — or unseating — the king, and the two exceptions to that pattern collapsed almost immediately. Aram Shah's untroubled inheritance in 1210 lasted, in Ferishta's own words, a reign he 'enjoyed scarcely one year' before Iltutmish defeated him in the field [4]. Rukn-ud-din Firuz's equally untroubled inheritance in 1236 — he 'ascended the throne, without opposition,' with the nobles making their offerings and swearing allegiance [6] — before a confederacy of chiefs deserted him and raised his sister Razia in his place [7]. Read this way, the dynasty's real continuity was never bloodline; it was the standing habit of the court's senior men to make and unmake kings, a habit that outlasted every attempt to found a hereditary house on it.
A Governorship Becomes a Throne
Qutb-ud-din Aibak did not seize the Delhi throne; it was posted to him. When 'Mahmood, his nephew, assumed the royal titles at Ghoor, and, on his accession, sent all the insignia of royalty, a throne, a canopy, standards, drums, and the title of King, to Kootb-ood-Deen Eibuk, desirous of securing his interest' [1], Aibak received these 'with becoming respect' and formally ascended a throne at Lahore, not Delhi, on the 18th of Zeekad, A.H. 602 [1]. He governed as Ghor's man in India until his death by a fall from his horse during a game of chogan, 'in the year 607' [2] — his kingdom, at that point, still a delegated command rather than a dynasty with its own rule of succession.
Whatever else Aibak's short reign established, it was architectural as much as political: the Quwwat-ul-Islam mosque at Delhi, whose eastern-gateway inscription — as transcribed by Carr Stephen from the standing fabric — records that 'this fort was conquered, and this Masjid-i-Jam'a was built' in the same year, 587 Hijri, 'by the Amir of high dignity... the Sultan Aibek' [22]. His son inherited that mosque, that title and that army, and none of them proved enough to hold the throne even a single year.
The Forty Take a Hand
Aram Shah's fall was not merely a defeat; it was the moment a body of Turkic chiefs, later remembered as the Chihalgani or 'Forty,' first acted collectively to decide who would rule Delhi. Ferishta's narrative names no council directly — it records only that Aram, distrustful of his own capital, withdrew, raised an army, and 'gave battle to Shums-ood-Deen Altmish within sight of the city, in which Aram lost the victory, and with it his kingdom' [4] — but the wider tradition this archive did not itself verify page by page holds that a conspiracy of the Forty invited Iltutmish, then governor of Badaun, to displace him. Iltutmish 'advanced against the capital, expelled Aram from the throne in the year 607, and declared himself King' [5]. However the chiefs' actual mechanism worked, the effect on the office was immediate and lasting: a governor from outside the direct bloodline had shown that the throne could be taken, not only inherited, and every ruler after him had to reckon with that precedent.
Iltutmish's own claim rested on a marriage rather than blood — Raverty's translation of Minhaj-us-Siraj states plainly that 'Shams-ud-Din, I-yal-timish... married a daughter of Kutb-ud-Din, I-bak, his owner, who ruled in Hindustan; and the dynasty of the former, from his name, Shams-ud-Din, is styled the Shamsi or Shamsiah dynasty' [19]. He had been Aibak's own purchased slave before becoming his son-in-law and then his supplanter — the pattern of slave rising through the household to the throne that gives the whole dynasty its English name would recur once more, in Balban, before the line ended. Iltutmish reigned twenty-five years, by the same arithmetic this chain uses elsewhere (see dateNotes), and left his own mark in stone: the doorway inscription on the first storey of the Qutb Minar, transcribed by Carr Stephen, credits 'the completion of this building' to 'Altamsh, Sultan, defender of the Faithful' [23].
Six Kings the Chiefs Made
After Rukn-ud-din Firuz's own brief, uncontested inheritance collapsed, every other one of Iltutmish's children who reached the throne did so by a faction's hand, not by an uncontested right of birth — a confederacy of named chiefs 'raised Sooltana Ruzeea Begum, the... eldest daughter of Shums-ood-Deen Altmish, to the throne, and imprisoned the King's mother' [ferishta-p214, ferishta-p215]. Razia's own reign ended the same way it began: while she was 'confined in the fort of Bituhnda,' her brother Muizuddin Bahram Shah ascended the throne instead [9], and Razia herself was killed within months of that reversal — Wikipedia's account, not independently verified here against a page image, states that 'at Tabarhinda, Razia's army rebelled and killed her loyalist Yaqut before imprisoning her,' and that she and her husband were probably murdered by their captors on 13 October 1240 [25]. Bahram Shah's own reign lasted little over two years before he too was deposed and killed; the nobility then released three imprisoned princes and 'raised' one of them, Alauddin Masud, Rukn-ud-din Firuz's son, to the throne 'on the same day' a rival usurper had briefly occupied it [10] — a single day in which the office changed hands twice, by two different factions' say-so, and no blood claim decided either outcome.
Even the two installations built around a more sympathetic story followed the same rule. Ferishta records that Nasir-ud-din Mahmud was 'seated on the throne of his father Shums-ood-Deen Altmish,' the choice framed as a matter of fitness, 'independently of his birth,' rather than birth order [11]. Mahmud reigned some twenty years and died of illness rather than violence [12] — the nearest thing to an ordinary death this house's later kings would see.
The Father-in-Law Who Waited
Ghiyas-ud-din Balban's path to the throne compresses this dynasty's whole pattern into one career: he began, by the account of the wider secondary literature, as a captured child 'sold as a slave' [26] and rose through Delhi's court to become, by the same secondary account, Nasiruddin Mahmud's father-in-law through his daughter's marriage to the sultan [26] — a marriage this archive's own records corroborate independently: a footnote in the Tabakat-i Nasiri dates a grant made 'shortly after the marriage of Ulugh Khan's daughter to the Sultan' to Rajab 647 H. (c. 1249), and a later entry records that same daughter, 'Nasir-ud-Din, Mahmud Shah's wife,' bearing the sultan a son [tabakat2-p759, tabakat2-p849]. When Mahmud died in 1266 after his long reign, Balban 'ascended the throne not only without opposition, but even with the general consent of the nobility and people' [13] — the one succession in this house's later half that reads, on the page, as genuinely uncontested, and it was still a father-in-law's throne, not a son's.
Balban held it for twenty-one years, by most reckonings, and it was his own choice of heir that the next succession overturned.
A Kotwal's Choice, an Infant King, and the End
Balban's deathbed will named his grandson Kai Khusrau as heir, with 'all of the officers promising to enforce' it [14], but Mullik Fukhr-ood-Deen, the kotwal — Delhi's chief magistrate, an office of the city rather than the blood — overrode it, telling the assembled chiefs that Kei Khoosrow was 'of a violent and untractable disposition, and therefore unfit to reign' [15], and instead raised a different grandson, Kaiqubad, 'then in his eighteenth year,' who 'ascended the throne, and assumed the title of Moiz-ood-Deen' [16]. It was the dynasty's last installation by a court officer acting on his own authority against a named alternative, and it produced the line's final ruler in fact if not quite in name: Kaiqubad's own infant son Kayumars was raised by 'the Mogul omras, who professed attachment to the royal family... in order to place him on the throne,' with no coronation Ferishta ever narrates [17]. Jalal-ud-din Firuz Khalji instead 'preserved, for some months, the young Prince Keiomoors alive, as a cloak to his usurpation' before having him killed and taking the throne for himself [18] — ending the Mamluk line not with an heir's failure but with the last and smallest faction's own installation devoured by a larger one. The wider secondary record frames the same event as dynastic rupture: 'the Khalji dynasty came into being when Jalal ud din Firuz Khalji overthrew the last of the Slave dynasty rulers, Muiz ud din Qaiqabad, the grandson of Balban, and assumed the throne at Delhi' [24], though this archive's own chain places the throne's actual last occupant one generation further on, in the murdered child no source calls a usurper.
Across the whole run, only Iltutmish, Mahmud and Balban reigned longer than a decade. The rest were made quickly and unmade about as fast: a dynasty whose defining institution, on the evidence its own chroniclers left behind, was never the royal house but the standing body of chiefs, officers and ministers around it who kept deciding, accession after accession, who got to sit on the throne next.
Dates in this essay
The register dates this house 1206–1290. Bosworth's table (as reprinted at erenow.org) gives Qutb-ud-din Aibak's 602/1206 accession as "Malik of Hindūstān in Lahore for the Ghūrids" — a Ghurid governorship, not yet an independent sultanate seated in the dynasty's own capital — and names Iltutmish, 607/1211, as the first of the line styled "sultan in Delhi." The archive's own dating rule (sovereign power in the state's own capital) would favour 1211 as the true start; the register keeps 1206 as the conventional dynasty span and records 1211 as the alternative (altFrom), a distinction this essay's own finding makes concrete — Aibak founded a governorship that only became a Delhi sultanate once Iltutmish defeated Aram Shah in the field and took the throne for himself.
Ferishta (via Briggs) prints only the Hijri year, A.H. 607, for Aram Shah's expulsion and Iltutmish's accession, with no A.D. conversion on that page. A.H. 607 spans A.D. 1210–1211. This essay follows the register's chain, which places the event in 1211 by combining that Hijri year with Aibak's own dated death (A.H. 607/A.D. 1210, per Ferishta p.199) and Aram's reign of "scarcely one year."
Several accessions in this chain (Rukn-ud-din Firuz's deposition and Razia's installation in 1236; Alauddin Masud's installation in 1242; Nasiruddin Mahmud's installation in 1246; Kaiqubad's accession in 1287; Kayumars's installation in 1290) carry no explicit Hijri-to-Gregorian date on the page the archive opened for the act itself — each year in this essay is the archive's own inference, stated in the chain's yearNote fields and repeated here only where load-bearing, chiefly Kaiqubad's 1287 (derived from Balban's death year, A.H. 685, and corroborated by Balban's own reign length of twenty-one years, by most reckonings, from his 1266 accession — 1287 minus 1266 is 21) and Kayumars's 1290 (the conventional endpoint of this Slave-King line, when Jalal-ud-din Khalji took the throne himself). Iltutmish's own reign length, given in 'The Forty Take a Hand' as twenty-five years, is the same kind of inference: Rukn-ud-din Firuz's accession is dated 1236 only by combining the Hijri year on the page (633 A.H.) with the register's calendar, and Iltutmish's own accession is dated 1211 by the chain set out above — 1236 minus 1211 is 25. No page this archive has opened states that span, or ranks it against any other reign in this house, directly.
Where authorities disagree about when a state began or ended, the archive follows one rule — a polity is dated from the assumption of sovereign power in its own capital, and to the settlement that extinguished it — and records the alternatives rather than hiding them.
Open questions
Aram Shah's parentage is itself uncertain in the sources this archive has opened: Bosworth's table (cited in the register) calls him a protégé of Aibak, 'dubiously the son,' where Ferishta states flatly that he was Aibak's son. The archive's chain follows Ferishta but the doubt is not resolved.
Whether Shah Turkan — named in Raverty as Rukn-ud-din Firuz's mother, 'the head of all the Sultan's haram' but explicitly not the chief wife — was the same woman as the unnamed daughter of Qutb-ud-din Aibak whom Iltutmish married is only Raverty's own footnoted speculation ('in all probability'), not a claim made by Minhaj-us-Siraj's primary text. This essay does not assert the identification.
No page opened in this research gives an explicit regnal date for three of the ten successions (Alauddin Masud's 1242 installation, Nasiruddin Mahmud's 1246 installation, and Kayumars's 1290 installation); all three years are the archive's own inference from surrounding dated facts, detailed in dateNotes.
The instrument by which the Chihalgani (the 'Forty' chiefs) formally deposed Aram Shah and invited Iltutmish is not detailed in the page images this archive has opened — Ferishta narrates the battle and the result, not the chiefs' prior deliberation; Wikipedia's account of a conspiracy and invitation was not cross-checked against a tier-A source for this essay.
Kaiqubad's precise cause of incapacity before his murder (his paralysis, referenced in general secondary literature on the period) is not established by any page this archive has opened; the chain records only that he was later killed and that the infant Kayumars was raised and then killed in turn.
No page this archive has opened states that Nasir-ud-din Mahmud was governor of Byraich before his accession, or that his summons was sent privately; those specifics, present in wider secondary accounts of this succession, are not carried by the cited source and have been dropped from this essay pending a citation that supports them.