R. Moses Zevi ben Shalom Landau (1878-1941) was dayyan in Kleinwardein. He learned by his father and afterwards by the Kiddushes Yom Tov in Sighet and the Arugat ha-Bassim in Hust. He was the son-in-law of R. Naphtali Schreiber Domitz in Kleinwardein. After the death of his father-in-law R. Landau succeeded him as dayyan. R. Landau wrote several other works, among them Mezuzot Melakhim, part of his larger Shulhan Melakhim.