Abd AL Rahman B Abi Bakr (d. 53 H) عبد الرحمن بن أبي بكر
A son of the famous Abu Bakr Al-Siddiq, he embraced Islam late. At Badr he challenged a dual. Abu Bakr rose up to face him. The Prophet Muhammad (saws) prevented him from answering the challenge. Later, he embraced Islam and migrated to Madinah. Under the command of Khalid ibn Walid, he participated in the battle of Yamamah and killed seven of the leading apostates.
When Mu`awiyyah (ra) sought from him the oath of allegiance for his son Yezid he protested saying: “Are we going to have the Roman system from now on, so that when father dies, his son is crowned king?” He was offered 100,000 Dirham as gift but refused to accept it saying that he was not going to sell his religion. He left for Makkah fearing persecution and died there in 53 H (some say in his sleep), before Yezid could assume the caliphate.