The usurper wrested the power from the king.

篡位者从国王手里夺得了权力。

《新英汉大辞典》

From 1485 to 1509 he ruled England, a usurper-king steadily tightening his grip and casting his net for money, intent on establishing his Tudor dynasty firmly on the throne.

在他统治英国的1485年到1509年期间，这位篡位的国王不仅稳定地加强统治并网罗钱财，而且意图以他的王位为基础，牢固地建立都铎王朝。

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The usurper wrested the power from the king .

篡位者从国王手里夺得了权力。

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So what has the one-time usurper king of late night TV been up to lately?

CNN: 'Confessions of a Late Night Talk Show Host

When Wessex was crowned King of England in January 1066, William accused him of being a usurper and assembled an invasion force.

BBC: 9 September

In particular, he likes to recall Dutugemunu, a famous warrior-king of the second century BC, who defeated Elara, a Tamil usurper from India.

ECONOMIST: Sri Lanka after the war: Victory's rotten fruits | The