Among the principal students of Rabbi Yaakov Beirav, he is the author of the Beis Yosef and the Shulchan Aruch (Code of Jewish Law), accepted as the authoritative halachic text by all Jews throughout the world. Similarly, he wrote other works, such as his text on the Rambam – “Kessef Mishnah”. Rabbi Yosef Caro, whose daughter married the Ari’s son, passed away on the 13th of Nissan 5335, at the age of eighty-seven.