"The appointment makes Prince Muqrin, the youngest son of the kingdom’s founder King Abdulaziz Al Saud, next in line to succeed in Saudi Arabia after his half-brothers the Custodian of the Two Holy Mosques, King Abdullah bin Abdulaziz, and Crown Prince Salman bin Abdulaziz".

http://www.khaleejtimes.com/kt-article-display-1.asp?xfile=data/middleeast/2014/March/middleeast_March211.xml§ion=middleeast