The Byzantine empire, 1118–1204 641
If Andronikos, once in power, had kept his election promises and formed
a genuinely inclusive regency government for Alexios II, it is possible that he
might have held the Comnenian nobility together. His programme of admin-
istrative reform, admirable in itself, could have won him support even among
his peers if he had treated them fairly and generously. But by instituting a reign
of terror against all potential rivals for the regency, including the emperor’s
sister and mother, he provoked a serious revolt in Asia Minor; then, by go-
ing on to eliminate Alexios II and settle the succession on his son John, he
removed the only focus of consensus among the Comnenian kin-group, and
committed himself to dependence on a faction bound to him by self-interest.
The terror continued, and those who could escaped it by fleeing abroad, to
the courts of rulers who had had ties or treaties with Manuel and Alexios II.
Thus the sultan, the prince and patriarch of Antioch, the king of Jerusalem, the
pope, Frederick Barbarossa, the marquis of Montferrat, the king of Hungary
and, above all, the king of Sicily were approached by refugees imploring their
intervention. It was at the insistence of Manuel’s great-nephew, the pinkernes
Alexios Komnenos, that William II of Sicily sent the invasion force which took
Durazzo and Thessalonica in 1185. The stated aim of the expedition was to re-
place Andronikos with a young man claiming to be Alexios II: Pseudo-Alexioi
were the inconvenient but inevitable consequence – for later emperors as well –
of the fact that Andronikos had sunk Alexios’s body in the Bosphorus. The
Sicilian invasion thus not only recalled the past invasions of Rober Guiscard,
Bohemond and Roger II; it also set a precedent for the diversion of the Fourth
Crusade, both by the damage and humiliation it caused, and in the way
it involved the external ‘family of kings’ in the politics of the Comnenian
family.
Andronikos would probably have succeeded eventually in repelling the
Sicilian invasion, as he succeeded in quelling every organized conspiracy against
him, but the very diligence of his agents in hunting down potential conspira-
tors led, quite unpredictably, to the spontaneous uprising which toppled him.
When his chief agent went to arrest a suspect who had given no cause for
suspicion, the suspect slew the agent in desperation, and then did the only
thing he could do in order to avoid immediate capital punishment: he rushed
for asylum to the church of St Sophia. A crowd gathered, Andronikos – evi-
dently feeling secure – was out of town and, St Sophia being also the imperial
coronation church, one thing led to another. So Isaac Angelos became emperor
because he was in the right place at the right time, and this had a decisive effect
on the course of his reign. His propagandists claimed, and he firmly believed,
that his accession was providential, that he was the Angel of the Lord sent by
heaven to end the tyranny, so that his whole reign was ordained, blessed and
protected by God. He considered his power irreproachable and untouchable,
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