<Li> Joan Sebastian, Mexican pop singer, actor </Li> <Li> John Sebastian (1914 − 1980), American classical harmonica player and composer </Li> <Li> John Sebastian (born 1944), American songwriter, member of the Lovin' Spoonful </Li> <Li> Linus Sebastian, a Canadian YouTube personality, presenter, producer, and founder of Linus Media Group . </Li>

Where does the last name sebastian come from