List famous contemporaries of William I the Conqueror in Western Europe.

Pope Gregory VII, German Emperor Henry IV, King of France Henry I and his wife Anna Yaroslavna, their son Philip 1. In Byzantium – the emperors Roman IV Diogenes and Alexei I Komnenos, in Russia – the princes Izyaslav, Svyatoslav and Vsevolod Yaroslavichi.

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