 Shabbatai HaKohen

Shabbatai ben Meir HaKohen (; 1621–1662) was a noted 17th century talmudist and halakhist.He became known as the "Shakh" (), which is an abbreviation of his most important work, "Siftei Kohen" () (literally "Lips of the Priest"), and his rulings were considered authoritative by later halakhists.