Question: What is the date of birth of Issa Bin Zayed Al Nahyan's father?
Sentence (from "Issa bin Zayed Al Nahyan"): Issa bin Zayed Al Nahyan  is the son of former United Arab Emirates President Zayed bin Sultan Al Nahyan; the half brother of the present ruler of Abu Dhabi, the President Khalifa bin Zayed Al Nahyan; and the half brother of Crown Prince Mohammed bin Zayed Al Nahyan.
Relevant evidence: Yes