FitzroyEnglish Means "son of the king" in Anglo-Norman French, from French roi meaning "king". This name has been bestowed upon illegitimate children of kings.
KhanUrdu, Pashto, Bengali From a title meaning "king, ruler", probably of Mongolian origin but used in many languages.
KingEnglish From Old English cyning"king", originally a nickname for someone who either acted in a kingly manner or who worked for or was otherwise associated with a king. A famous bearer was the American civil rights leader Martin Luther King Jr. (1929-1968).
KirályHungarian Means "king" in Hungarian, of Slavic origin (a cognate of Król).
Rey 1English, Spanish, French, Catalan Means "king" in Old French, Spanish and Catalan, ultimately from Latin rex (genitive regis), perhaps originally denoting someone who acted like a king.