BERK-YARUQ
AND
MUHAMMAD
of
1093. Mindful of his capabilities, however, Berk-Yaruq wished
to make him vizier, and Taj al-Mulk mollified a good proportion of
the Nizamiyya by judicious payments; but an irreconcilable element
of
them finally secured his death.
1
In the next few years personal
animosities among Nizam al-Mulk's sons placed them on opposite sides
in the conflict. Berk-Yaruq's first vizier was the
drunkard
'Izz
al-Mulk
Husain, and
then
in 487/1094 the capable Mu'ayyid al-Mulk
'Ubaidallah.
Unfortunately, the hostility of the sultan's mother
Zubaida
Khatun led to his dismissal, and a further son, Fakhr al-Mulk
Abu'l
Muzaffar, was appointed in his place. The latter and Mu'ayyid
al-Mulk
were strong enemies, for they had quarrelled over some jewels
left
by their father, and henceforth Mu'ayyid al-Mulk became the
guiding
spirit behind Muhammad's bid for the sultanate.
2
Terken
Khatun's final act was to invite another member of the Saljuq
family,
Isma'Il b. Yaquti, to march against Berk-Yaruq. Although
Isma'Il collected an army from the Turkmen of Azarbaijan and Arran,
he was defeated and Berk-Yaruq's former atabeg Gumush-Tegin put
him to death. From Isfahan Terken Khatun tried to make contact
with
Tutush, but she died suddenly in 487/1094, to be followed a
month later by her son Mahmud.
3
Early
in this year Berk-Yaruq disposed of two other possible rivals,
his uncle Tekish, who had been blinded by Malik-Shah and imprisoned
at Takrit, and Tekish's son; Tekish, in an
attempt
to overthrow the
youthful
sultan, had allegedly been in touch with former supporters
in his old appanage of Tukharistan.
4
Despite the firmness of Alp-
Arslan
and Malik-Shah, the traditional idea of a paternal inheritance
divided
amongst members of the family, coupled with the absence of
any clear succession law, came to the surface in these uncertain times.
In addition to his struggle with Terken Khatun, Berk-Yaruq was faced
with
a coup
d'etat
in the east by one uncle, Arslan-Arghun, and in the
west
by a bid for the sultanate from another uncle, Taj al-Daula Tutush.
Arslan-Arghun's
rebellion was the less dangerous, for he seems to
have
had only the limited aim of making Khurasan an autonomous
province
for himself. On hearing of Malik-Shah's death he left his
iqta' in Jibal, seized several of the cities of Khurasan, and demanded
1
(Anon.), Mujmal
al-tawarlkh,
pp.
408-9;
Ibn al-Athir, vol. x, pp.
146-7.
2
Bundari, pp. 83-6; Ibn al-Athir, vol. x, pp.
192-5.
3
Mujmal
al-tan>arikh
y
p. 409; Zahir al-DIn Nishapuri, p. 36; Ravandi, p. 141; Ibn al-
Jauzi, vol. ix, p. 84; Ibn al-Athir, vol. x, pp. 152. 159, 163; Barhebraeus, pp. 232-3.
4
Ibn al-Athir, vol. x, p. 162.
105