Aaron Ben Elijah

Aaron ben Elijah (Aharon son of Eliyahu), the Latter, of Nicomedia (אהרון בן אליהו האחרון; born 1328 or 1329 in Nicomedia – 1369 in Constantinople) is often considered to be the most prominent Karaite theologian. He is referred to as "the Younger" to distinguish him from another Aaron ben Elijah, also a theologian from Constantinople, which was then the center of Karaite learning. Even though Aaron lived for much of his life in Constantinople, he is sometimes distinguished from the other Aaron Ben Elijah by the title "of Nicomedia," signifying another place he lived.