TREVES, JOHANAN BEN MATTATHIAS (d. 1429), French rabbi. Treves was ordained by his father Mattathias b. Joseph. He was a son-in-law of the procurator-general, *Manessier de Vesoul. Treves first served as rabbi to a single French community but on the death of his father in 1385 was appointed chief rabbi of Paris with the consent of Charles VI and served in this office from 1385 to 1394. After some years of tranquility, a distinguished pupil of his father, Isaiah Astruc b. Abba Mari, became his enemy and claimed for himself the sole right of appointing rabbis in France and of conducting a yeshivah. With the help of Meir b. Baruch ha-Levi of Vienna, Isaiah Astruc tried to remove Johanan from his post by proclaiming that all arrangements of the rabbinate not confirmed by him were null and void. Johanan turned for help to the greatest rabbis of Catalonia, Ḥasdai *Crescas and *Isaac b. Sheshet Perfet (the Ribash). These two supported the persecuted rabbi and in their responsa opposed both Isaiah Astruc and Meir b. Baruch. They claimed that Johanan, "besides inheriting his
Graetz, Gesch, 8 (n.d.), 4, 35f., 70 n.2; Bruell, Jahrbuecher, 1 (1874), 95–99; Guedemann, Gesch Erz, 1 (1880), 247–9; Gross, Gal Jud, 508, 534; Weiss, Dor, 5 (19044), 147, 164–7, 239 n. 1; I. Lévi, in: REJ, 39 (1899), 85–94; G. Lauer, in: JJLG, 16 (1924), 1–42; A.M. Hershman, Rabbi Isaac b. Sheshet Perfet and his Time (1943), 203–13; S. Schwarzfuchs, Etudes sur l'Origine et le Développement du Rabbinat au Moyen Age (1957), 38–75.