THE REIGN OF HUI-TSUNG 195
royalist leaders at Cho-lo while the rival Tibetan regime in Ch'ing-t'ang
enjoyed an alliance with Liang Ch'i-pu." Extreme instability prevailed in the
Kokonor region throughout the 1090s. A-li-ku's death in 1096 set in motion
a confused succession contest that the Sung exploited to extend their control
over Kokonor in 1099. At every step they met Tangut resistance.
The long-awaited coup at the Tangut court apparently took place late in
1094.
Jen-to Pao-chung, Wei-ming A-wu, and their followers slew Liang
Ch'i-pu and exterminated his clan. The empress dowager, protected by her
own still-considerable military power, evidently sided with the assassins
because she had suspected her brother of plotting against her son, the twelve-
year-old emperor, and
herself.
80
But the full restoration of Wei-ming royal
authority was not possible in the face of
a
grave military emergency.
The Sung had mounted offensives against Hsia in 1091 and 1093. Then in
1096 they launched an all-out campaign to destroy Hsia and occupy
Kokonor. The war dragged on until 1099. Alarmed at the ferocity of the
Sung depredations, the Liao court, which was itself embroiled in a long-
drawn-out war with the Tsu-pu in Mongolia, to the north of Hsia, three
times issued stern notes urging the Sung to desist, but to no avail.
8
' These
four years of violent warfare, along with the long closure of border markets,
brought further deprivation and misery to the Hsia people, ruining their
livelihoods and their lands.
The empress dowager died in 1099, poisoned, rumor had it, by a Liao
envoy for her failure to assist the Khitans to suppress a rebellion of vassal
tribes.
82
For months the Sung court spurned Tangut envoys sent to announce
her death and to sue for peace. Determined to end the war and at last free of
Liang dominance, the Wei-ming elders went to extreme lengths to appease
the Sung court.
While the Tanguts were thus negotiating peace in the Chinese capital,
they continued to resist the Sung advance into Kokonor. Nevertheless, the
Sung seized and fortified T'ien-tu and took Hui-chou. While Chinese armies
marched up the Huang River valley in the fall of 1099, the various Tibetan
factions at Miao-ch'uan, Tsung-ko, and Ch'ing-t'ang were in constant agita-
tion, alternately surrendering and resisting. The Sung command staff
was
in
almost equal disorder, as generals and their subordinates impeached one
another, were demoted, cashiered, and reinstated in dizzying succession.
Tangut armies also entered the fracas and the Tibetan forces, numbering sixty
79 Maeda, Kasci, pp. 606-9; HCP, 402-4, 444 passim; 467, pp. 8a-b.
80 The data are elusive. See for example, Sung huiyao chi kao, 175, ping 8, pp. 31b—32a. Wu, Hsi Hsia
shu shih, 29, pp. 15a-16a, provides the only account of the coup that assigns it a fixed date;
contemporary corroboration remains to be found.
81 IS, 115, p. 1528; HCP, 492, pp. 8b-9a; 507, pp. 3b-4a.
82 Wu, Hsi Hsia shu shih, 31, p. ib.
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