 Under Jan Łosowicz (1467–1481) many Ruthenians were converted to Catholicism and the Franciscan Bernardines were established at Vilnius.Albert Tabor, a Lithuanian, invited the Dominicans to Vilnius and entrusted to them the Church of the Holy Spirit; Albert Radziwiłł (1508–1519) died in the odour of sanctity; John the Lithuanian (1519–1537) held the first diocesan synod at Vilnius in 1526; Prince Paweł Holszański (1534–1555) restored his cathedral in the Gothic style and held a synod in 1555; Walerian Protasewicz Suszkowski (1556–1580) had to contend for the celibacy of the clergy and the use of Latin in the Liturgy; he brought the Jesuits, among whom was Piotr Skarga, to Vilnius.Prince Jerzy Radziwiłł (1581–1591) fostered the "Alma Academia et Universitas Vilnensis Societatis Iesu", founded a seminary, under the direction of the Jesuits, introduced the regulations of the Council of Trent, and having been made a cardinal, was transferred to the Diocese of Kraków in 1591.