Person
Jabalah ibn al-Aiham
جبلة بن الأيهم
Lifespan unknown Ghassanids
King of the Ghassanids who supported Byzantine forces against Muslims.
Significance
Ghassanid king allied with Byzantines
Stated motivation
Support Byzantine defense
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.