In 1153 the Ghuzz Turkomans overran the country and partly destroyed town and suburbs.
During the reign of Sultan Sanjar or Sinjar of the same house, in the middle of the 11th century, Mer y was overrun by the Turkish tribes of the Ghuzz from beyond the Oxus.
Under the Tahirids of Khorasan, the Saffarids of Seistan and the Samanids of Bokhara, it flourished for some centuries in peace and progressive prosperity; but during the succeeding rule of the Ghaznevid kings its metropolitan character was for a time obscured by the celebrity of the neighbouring capital of Ghazni, until finally in the reign of Sultan Sanjar of Mer y about 1157 the city was entirely destroyed by an irruption of the Ghuzz, the predecessors, in race as well as in habitat, of the modern Turkomans.
They belonged to the Turkish tribe of the Ghuzz (01Voc of Const.
There arose, however, at some undefined epoch a strife on the part of this tribe and some others with the rest of the Turks, because, as the latter allege, Ghuzz, the son (or grandson) of Yafeth (Japhet), the son of NO (Noah), had stolen the genuine rain-stone, which Turk, also a son of Yafeth, had inherited from his father.
By this party, as appears from this tradition, the Ghuzz were not considered to be genuine Turks, but to be Turkmans (that is, according to a popular etymology, resembling Turks).
But the native tradition of the Ghuzz was unquestionably right, as they spoke a pure Turkish dialect.
The fact, however, remains that there existed a certain animosity between the Ghuzz and their allies and the rest of the Turks, which increased as the former became converted to Islam (in the course of the 4th century of the Flight).
The Ghuzz were settled at that time in Transoxiana, especially at Jand, a well-known city on the banks of the Jaxartes, not far from its mouth.
But, friends or foes, the Ghuzz became a serious danger to the adjoining Mahommedan provinces from their predatory habits and continual raids, and the more so as they were very numerous.
After this victory the three princes Toghrul Beg, Chakir Beg and Ibrahim Niyal separated in different directions and conquered the Mahommedan provinces east of the Tigris; the last named, after conquering Hamadan and the province of Jebel (Irak i Ajami), penetrated as early as 1048, with fresh Ghuzz troops, into Armenia and reached Manzikert, Erzerutn and Trebizond.
By the invasion of these hordes several Turkish tribes, the Ghuzz and others, were driven beyond the Oxus, where they killed the Seljuk governor of Balkh, though they professed to be loyal to Sinjar.
Sinjar resolved to punish this crime; but his troops deserted and he himself was taken prisoner by the Ghuzz, who kept him in strict confinement during two years (1153-1155), though treating him with all outward marks of respect.
But after the death of Toghrul Shah (1170) his three sons disputed with each other for the possession of the throne, and implored foreign assistance, till the country became utterly devastated and fell an easy prey to some bands of Ghuzz, who, under the leadership of Malik Dinar (1185), marched into Kerman after harassing Sinjar's dominions.
During the first half of his long reign took place the development of the power of the Ghuzz, a great Turkish tribe, who took the name Seljuk from Seljuk their chief in Transoxiana.
1141) under the king Ghurkhan defeated the great army of the Seljuk prince and compelled the Turkish tribes of the Ghuzz to cross the Oxus and to occupy Khorasan.
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.