The house of Nahyan) is one of the six ruling families of the United Arab Emirates, and is based in the capital Abu Dhabi, United Arab Emirates. Al Nahyan is a branch of the House of Al-Falahi (Al Bu Fala?), a branch of the Bani Yas tribe, and is related to the House of Al-Falasi and also related to House of Al-Yassi , these two powerful houses/tribes are from which the ruling the family of Dubai, Al Maktoum, descends. Al Nahyans came to Abu Dhabi in the 18th century and hail from Liwa Oasis. They have been the rulers of Abu Dhabi since 1793, but have been ruling their tribe in Liwa Oasis hundreds of years back.