Negus

Ja'far ibn Abi Talib, Ali's full brother and the Prophet's cousin, led the Muslim emigrants who took refuge in Abyssinia, spoke on their behalf before the Negus, and was killed commanding the army at the Battle of Mu'tah after both his hands were severed holding its banner.

Umm Habiba, born Ramla bint Abi Sufyan, was a wife of Prophet Muhammad (Peace Be Upon Him) and daughter of the Quraysh leader Abu Sufyan. She accepted Islam early, emigrated to Abyssinia, and her marriage to the Prophet was contracted there by proxy through the Negus.