Person
Ubayd Allah ibn Ziyad
عبيد الله بن زياد
d. 673 CE Quraysh
Ubayd Allah ibn Ziyad was the Umayyad governor of Iraq who played a key role in supporting Marwan's rise to the caliphate.
Significance
Umayyad governor of Iraq who encouraged Marwan's caliphate candidacy
Reputation in tradition
mixed
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.