عبد الله بن الزبير
Al-Baqir was born in Medina around 56 AH (676 AD), when Muawiyah I was trying to ensure that his son Yazid I could inherit the caliphate. When Al-Baqir was a child, his family was affected by the Battle of Karbala; he was three or four years old when his grandfather, Husayn, was killed. According to Ya'qubi, al-Baqir was present at Karbala. In his youth he witnessed the struggle for power among the Umayyads, Abd Allah ibn al-Zubayr and a number of Shiite parties, whilst his father maintained a distance from local political activity.