Answer
Muhammad al-Baqir, the fifth Shia Imam, was born in 676 CE. He was the son of Imam Zayn al-Abidin and the great-grandson of the Prophet Muhammad. Muhammad al-Baqir was known for his vast knowledge and piety, and he played a significant role in the development of Shia Islam. He is considered one of the most important figures in Shia history.