Umaru Musa Yar’Adua was the President of Nigeria and the 13th Head of State (From  29 May 2007 till death ) He had previously served as governor of Katsina State in northern Nigeria from 29 May 1999 to 28 May 2007. In 2009, Yar’Adua left for Saudi Arabia to receive treatment for pericarditis. He returned to Nigeria in 2010, where he died on 5 May.