Conversation so far:
When was Hasan al-Askari born?
In 231 or 232 A.H., Hasan al-Askari was born in Medina.
Where was Hasan al-Askari born?
In 231 or 232 A.H., Hasan al-Askari was born in Medina.
Who were Hasan al-Askari's parents?
Hasan al-Askari's parents were Ali al-Hadi and Al-Askari's mother's given name was Hadith, though some say she was called Susan, Ghazala, Salil, or Haribta.

Question: Did he have siblings?
Self-contained rewrite: Did Hasan al-Askari have siblings?