Zayed was born in 1918 and named after his grandfather, Shaikh Zayed bin Khalifa Al Nahyan, who has the longest reign in the emirate's history, ruling Abu Dhabi from 1855 to 1909. His grandfather is also known as “Zayid The Great” and “Zayed the First”, and had played a large role in forging unity between the tribes of Oman and leading the Bani Yas tribe.