ADRIAN II., pope from 867 to 872, was a member of a noble Roman family, and became pope in 867, at an advanced age. Like his predecessor, Nicholas, Adrian II. was forced to submit, at least in temporal affairs, to the tutelage of the emperor, Louis II., who placed him under the surveillance of Arsenius, bishop of Orta, his confidential adviser, and Arsenius's son Anastasius, the librarian. Adrian had married in his youth, and his wife and daughter were still living. They were carried off and assassinated by Anastasius's brother, Eleutherius. Adrian died in 872.