Sentence:The guardianship lay in the hands of his pious mother, the Empress Agnes, until April 1063, however, when a [e1]faction[/e1] of [e2]conspirators[/e2], led by Archbishop Anno II of Cologne, abducted the young king, who tried to safe himself by jumping into the Rhine.
 e1: faction. 
 e2 : conspirators.
Answer: Member-Collection(e2,e1)