The King outlived two of his crown princes. Conservative Interior Minister Nayef bin Abdul-Aziz Al Saud was named heir to the throne on the death of Sultan bin Abdulaziz in October 2011, but Nayef himself died in June 2012. Abdullah then named the 76-year-old defense minister, Salman bin Abdulaziz Al Saud, as crown prince. According various reports, Abdullah married about 30 times, and had more than 35 children.The king had a personal fortune estimated at US$18 billion, making him the third wealthiest head of state in the world. He died on 23 January 2015, aged 90, three weeks after being hospitalized for pneumonia.