One leader with this name only ruled for three months before abdicating in favor of Marwan I.
One leader with this name only ruled for three months before abdicating in favor of Marwan I. That leader reluctantly succeeded his father Yazid I and inherited the struggle against Abdullah bin Zubayr. Another man with this name was crowned as Caliph in Jerusalem and introduced the "barid" postal service. That man captured Rhodes and sold the remains of the Colossus to a merchant with 900 camels. That leader with this name was appointed governor of Syria by Caliph Umar. That ruler fought the indecisive Battle of Siffin and waged a protracted war against Ali on the pretense of avenging the death of his kinsman Caliph Uthman. For 10 points, give this name shared by the first and third leaders of the Umayyad Caliphate.
One leader with this name only ruled for three months before abdicating in favor of Marwan I.
{Muawiyah}