Person
Mu'awiya ibn Abi-Sufyan ibn Harb ibn Umayya
Lifespan unknown Quraysh
Mu'awiya ibn Abi-Sufyan was the great-grandson of Umayya ibn Abd-Shams and established the Umayyad Caliphate with Damascus as its capital.
Significance
Great-grandson of Umayya and founder of the Umayyad Caliphate
Sources: Wikipedia and classical Islamic biographical literature compiled by automated researchers. Every page is being continuously refined — if something looks off, please check back in a few days.