LUCERIA (LUCK), Diocese of. — A city and diocese in Poland, suffragan of Lviv. The diocese was founded in 1358 by Innocent VI, but with its episcopal see at Włodzimierz Wołyński, confirmed in 1375 by Gregory XI. Its first bishop was Peter the Dominican. In 1428 Bishop Andreas Spatwski transferred the see to Luck. From the beginning of the 16th century the bishops bore the title of Luck and Brześć, as they often resided in the latter city. In 1797 the diocese was united with that of Zhytomyr, where in 1844 the episcopal see was also transferred; but on 28 October 1925 it returned to Luck, the see of Zhytomyr having been re-established.
At present the entire diocese is under Soviet occupation. In 1939 it had: 398,000 Catholics, 185 parishes, 246 diocesan priests and 15 regular clergy.
Eminent bishops: Gregory the Dominican (d. 1425); Jerzy Falczewski (d. 1548); Wiktorjan Wierzbicki, who convened the first synod (d. 1588); Paweł Algimunt, Prince Holszański, later Bishop of Vilnius, who took part in the Lateran Council in 1512 (d. 1535); Bernard Maciejowski, later Primate and cardinal (1548–1608); Marcin Szyszkowski (1554–1630); Henryk Firlej, later Primate of Poland (d. 1626); Aleksander Lipski, later Bishop of Kraków and cardinal (1690–1745); Franciszek Kobielski (d. 1755); Adam Stanisław Naruszewicz, Bishop of Smolensk, historian and poet (1733–96).

of the Dialogus de felicitate vitae by the Italian humanist Bartolomeo Facio, enjoyed wide circulation and, for its linguistic merits, ranks among the authorities of the Spanish Academy. In the National Library of Madrid