Otmuchów. Tomasz II consecrated the high altar of the cathedral; he was present at the First Council of Lyon (1274) and in 1279 held a diocesan synod. Jan III Romka (1292–1301), belonged to the Polish party in the cathedral chapter. His maintenance of the prerogatives of the Church brought him, also, into conflict with the temporal rulers of Silesia; in 1296 he called a synod for the defence of these rights. In the election of Henry of Wierzbna (1302–19), the German party in the cathedral chapter won, but this victory cost the new bishop the enmity of the opposing faction. He was made guardian of the youthful Dukes of Wrocław, and this appointment, together with the factional disputes, led to the bringing of grave accusations against him. The researches of more recent times have proved the groundlessness of these attacks. He was kept in Avignon a number of years by a suit before the Curia which was finally settled in his favour. Notwithstanding the troubles of his life he was energetic in the performance of his duties. He carried on the construction of the cathedral, and in 1305 and 1316 held diocesan synods. The office of Auxiliary Bishop of Wrocław dates from his episcopate. After his death a divided vote led to a vacancy of the see. The two candidates, Wit and Lutold, elected by the opposing factions, finally resigned, and Pope John XXII transferred Nanker of Kraków to Wrocław (1326–41). Within Bohemia and the Habsburg Monarchy The constant division and subdivision of Silesian territory into small principalities for the members of the ruling families resulted in a condition of weakness that resulted in dependence on a stronger neighbour, and parts of Silesia thus came under the control of Bohemia (first between 1289 and 1306; definitely from 1327 onwards), which itself was part of the Holy Roman Empire. A quarrel broke out between Bishop Nanker and the suzerain of Silesia, King John I of Bohemia, when the king seized the castle of Milicz which belonged to the cathedral chapter. The bishop excommunicated the king and those members of the Council of Wrocław who sided with him. On account of this he was obliged to flee from Breslau and take refuge in Nysa, where he died. Przecław of Pogorzela (1341–1376) was elected bishop while pursuing his studies at Bologna, and was consecrated bishop at Avignon. Through his friendship with Charles, the