Muʿāwiyya(h) ibn Abi-Sufyān
As khalīfa, Muʿāwiyya pursued a policy of pragmatism. In politics he insisted on rapprochement. His approach to dissidents was through persuasion and monetary gifts. It was Muʿāwiyya who changed the character of the Caliphate to one of hereditary monarchy (mulk).
On the question of succession Muʿāwiyya tried to secure a peaceful transfer of power to his son Yazīd. Upon his death, however, these plans backfired and led to the beginning of the Second Civil War in Islam.
"Muʿāwiyya(h) ibn Abi-Sufyān." The Concise Oxford Dictionary of World Religions. . Encyclopedia.com. (August 21, 2018). http://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/muawiyyah-ibn-abi-sufyan
"Muʿāwiyya(h) ibn Abi-Sufyān." The Concise Oxford Dictionary of World Religions. . Retrieved August 21, 2018 from Encyclopedia.com: http://www.encyclopedia.com/religion/dictionaries-thesauruses-pictures-and-press-releases/muawiyyah-ibn-abi-sufyan