Alp Arslan (1029 - December 15, 1072) was the second sultan of the Seljuk dynasty and great-grandson of Seljuk, the eponym of the dynasty. He assumed the name of "Muhammad bin Da'ud Chaghri" when he embraced Islam, and for his military prowess, personal valour, and fighting skills he obtained the surname Alp Arslan, which means "a valiant lion" in Turkish. Wikipedia
The definitive Wikipedia entry for Alp Arslan. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Alp_Arslan
