Question: Who is Muhammad Ibn Ali Al-Hadi's paternal grandfather?
Sentence (from "Muhammad ibn Ali al-Hadi"): Muhammad ibn Ali ibne-Muhammed Nakî‘yyî’l-Hâdî was the son of Ali al-Hadi and the brother of Hasan al-Askari, the 10th and 11th Twelver Shia Imams, respectively.
Relevant evidence: Yes