INTERNAL
STRUCTURE
OF THE
SALJUQ
EMPIRE
221
Yaruq,
who had
been
imprisoned in Isfahan on Terken Khatun's
orders,
and proclaimed him sultan. He was at this time a boy of thirteen
and in no position to assert himself as the leader of his people.
Isma'il b. Yaquti, his maternal uncle, who was in Azarbaijan, was
persuaded by Terken
Khatun to
side
against Berk-Yaruq. He was
eventually
killed by the Nizamiyya mamluks, as was Taj al-Mulk
Abu'l
Ghana'im, who had collaborated with Terken Khatun. Tutush
and Arslan Arghun, both brothers of Malik-
Shah, also rebelled in
Syria
and Khurasan respectively. The former was defeated in
487/1096,
and the latter three years
later.
Berk-Yaruq's half-brother Muhammad
rebelled in
492/1098-9.
After
many vicissitudes, Berk-Yaruq established
a
slight supremacy in
497/1103-4
at the
cost
of much disorder through-
out the country and a decline in the prestige of the sultanate. By the
terms
of the peace concluded between them, Muhammad's status was
virtually
that of ah independent
ruler.
On his deathbed in
498/1105,
Berk-Yaruq
nominated his son Malik-Shah as his vali
c
ahd, but
although the khutba was read in his name in Baghdad, Muhammad
soon
succeeded
in establishing himself as sultan. During the reign of
Muhammad, his full brother
Sanjar
(whom Berk-Yaruq had sent with
his atabeg Qumach to
Khurasan in
490/1097)
was nominally the
ruler
of
Khurasan
on behalf of Muhammad, but he was
virtually
independent.
On the death of Muhammad,
Sanjar
defeated Mahmud b. Muhammad,
whom Muhammad had nominated as his vali
c
ahd at Saveh
^1513/1119,
and he then made himself sultan. He did not, however, move to a more
central
position but reinstated Mahmud in those districts which he had
held in western and southern Persia and
Iraq,
while he himself returned
to Khurasan. Mahmud and his successors are
referred
to in the sources
as sultans, but although they enjoyed a certain measure of independence,
their
status, until the death of
Sanjar,
was only that of maliks. It is not
clear
why
Sanjar
remained in Khurasan: he may not have had any
personal following outside that province, or he may have considered it
unwise to absent himself permanently from the eastern frontiers
since
the tribes of Central Asia were again in a state of unrest and pressing
in upon the Saljuq empire; or it may be that he was influenced by the
wishes of his mother, who was Mahmud's grandmother and who is
alleged to have persuaded him to make peace with Mahmud.
What-
ever
the causes, the arrangement was unsatisfactory.
Sanjar
was
forced to intervene in the western provinces on various occasions,
and was unable either to restrain the increasing ambitions of the