He claimed descent from the caliph Abubekr, and from the Khwarizm-Shah Sultan `Ala-uddin b.
It eventually passed under the sway of the rulers of Khwarizm (Khiva).
BIRUNI [ABU-R-] (973-1048), Arabian scholar, was born of Persian parentage in Khwarizm (Khiva), and was a Shiite in religion.
In 1216 Bokhara was again subdued by Mahommed Shah Khwarizm, but his conquest was wrested from him by Jenghiz Khan in 1220.
Hindustan he had to march north into Khwarizm (Khiva) against his brother-in-law Mamun, who had refused to acknowledge Mahmud's supremacy.
The result was as usual, and Mahmud, having committed Khwarizm to a new ruler, one of Mamun's chief officers, returned to his capital.
This was the second warlike expedition in which he was the chief actor, and the accomplishment of its objects led to further operations, among them the subjection of Khwarizm and Urganj.
Some of them served in the armies of the Ghaznavids Sabuktagin (Sebuktegin) and Mallmud (997-1030); but the Seljuks, a royal family among them, had various relations with the reigning princes of Transoxiana and Khwarizm, which cannot be narrated here.'
However, he lost the battle that ensued, and the ' Comp. Sachau, "Zur Geschichte and Chronologie von Khwarizm," in Sitzungsberichte of the Vienna Acad., lxxiv.
Other expeditions were undertaken by him against Khwarizm and Turkestan; the government of the former had been given by Barkiyaroq to Mahommed b.
1175); and Toghrul, son of Arslan, killed in 1194 by Inanej, son of his atabeg, Mahommed, who was in confederation with the Khwarizm shah of the epoch, Takash.
Afterwards the shahs of Khwarizm took this province.'
But his greatest military fame was won by a war which, however glorious, was to prove fatal to the Seljuk empire in the future: in conjunction with his ally, the Ayyubite prince Ashraf, he defeated the Khwarizm shah Jalal ud-din near Erzingan (1230).
It was known to the ancient Arab and Persian geographers as the Sea of Khwarizm or Kharezm, from the neighbouring district of the Chorasmians, and derives its present name from the Kirghiz designation of Aral-denghiz, or Sea of Islands.
In 711-712 Mahommedan troops were conducted by Kotaiba, the governor of Khorasan, into the province of Khwarizm (Khiva), after subjugating which they advanced on Bokhara and Samarkand, the ancient Sogdiana, and are said to have even reached Ferghana and Kashgar, but no occupation then ensued.
In1016-1025the government of Khwarizm was bestowed by Sultan Mahmud of Ghazni upon Altuntash, one of his most distinguished generals.
The last dynasty ended with Sultan Jalal-ud-din, during whose reign (1221-1231) a division of the Mogul army of Jenghiz Khan first invaded Khwarizm, while the khan himself was besieging Bamian; Jalal-ud-din, deserted by most of his troops, retired to Ghazni, where he was pursued by Jenghiz Khan, and again retreating towards Hindustan was overtaken and driven across the Indus.
They held Kunduz, Balkh, Khwarizm and Khorasan, and for a time Badakshan also; but Badakshan was soon won by the emperor Baber, and in 1529 was bestowed on his cousin Suleiman, who by 1555 had established his rule over much of the region between the Oxus and the Hindu Kush.
For a brief period the Afghan countries were subject to the king of Khwarizm, and it was here chiefly that occurred the gallant attempts of Jalaluddin of Khwarizm to withstand the progress of Jenghiz Khan.
Balkh and Tokharistan, Bokhara, Samarkand and Khwarizm (modern Khiva), even Kabul and Kandahar had been subdued; but in the time of the civil war a great deal had been lost again.
Moslim conquered Paikend, Bokhara, Samarkand, Khwarizm (mod.
Here, however, he came into conflict with the then mighty prince of Khwarizm (Khiva), who, already exasperated because the caliph refused to grant him the honours he asked for, resolved to overthrow the Caliphate of the Abbasids, and to place a descendant of Ali on the throne of Bagdad.
To this heathen chief the Imam of the Moslems sent a messenger, inducing him to attack the prince of Khwarizm, who already had provoked the Mongolian by a disrespectful treatment of his envoys.
The only man who dared, and sometimes with success, to combat them was Jelaleddin, the ex-king of Khwarizm, but after his death in 628 (A.D.
Returning to the court of Uzbeg, at Sarai on the Volga, he crossed the steppes to Khwarizm and Bokhara; thence through Khorasan and Kabul, and over the Hindu Kush (to which he gives that name, its first occurrence).
The sultans of Kerman were rarely independent in the full sense, but they enjoyed comparative peace and prosperity till the death of Toghrul Shah (1170), after which their power fell before the Ghuzz tribes; Kermn was finally captured in ii9~ by the Khwarizm shahs.
Meanwhile an independent dynasty was formed about 1136 in Azerbaijan by the governors (atabegs) appointed by the Seljuks; this dynasty was overthrown by the Khwarizm shahs in 1225.
The fourth, Sad, became tributary to the Khwarizm shahs in, i9~, and the fifth acknowledged allegiance to the Mongol Ogotai and received the title Kutbegh K han.
Before passing on to the Mongol conquerors of Persia it is necessary briefly to notice the shahs of Khwarizm, who have Khwarizm frequently been mentioned as overthrowing th~ininor dynasties which arose with the decay of the Stiljuks.
These rulers were descended from Anushtajin, a Turkish slave of Ghazni, who became cupbearer to the Seijuk M alik Shah, and afterwards governor of Khwarizm (Khiva) in 1077.
Shortly afterwards he returned, firmly established his power, and extended the Khwarizm Empire as far as Jand on the Sihun.
The real rulers of Persia during the years 8741231 were, as we have seen, the Samanids, the Buyids, the Ghaznevids, the Seljuks, the Salgharids and the Khwarizm shahs.
In the later years of the 12th century the: Mongols began their westward march and, after the conquest of the ancient Mongols kingdom of the Kajakitai, reached the borders of the territory of the Khwarizm shahs, which was at once overwhelmed.
Hulagu at Once proceeded to destroy a number of nascent dynasties which endeavoured to establish themselves on the ruins of the Khwarizm Empire; about 1255 he destroyed the dynasty of the i by the capture of their stronghold of Alamut (Eagles Nest), and finally in 1258 captured Bagdad.
The khan of Khwarizm, who had made repeated depredations in Persian territory, was taken prisoner and executed.