Rabbi Moshe, of Ellenbogen?

The Katzenellenbogen family derive from the locality of Katzenelnbogen in the Prussian province of Hesse-Nassau. In 1312 Count Diether of Katzenelnbogen received permission from Emperor Henry VII. to keep twelve Jews at Katzenelnbogen and Ludwig the Bavarian in 1330 permitted Count Wilhelm and his heirs to keep twenty-four Jews in their dominions (Böhmer, "Regesten," No. 501; Wiener, "Regesten," pp. 23, 33). Moshe Katzenelnbogen must have been one of these and when he migrated to Italy was known as Moshe from Katzenelbogen