Opera, volume 4 Alšėniškis' supralibros on the front cover of the book "Opera"

Full title: Primus tomus concionum de tempore, quae à prima Dominica Adventus, usque ad quadragesimae initium in ecclesia haberi solent. Adiectae sunt in fine Quinque de poenitentia conciones, quae diebus Dominicis in quadragesima post meridiem habitae sunt .

Bishop of Vilnius, Paulius Alšėniškis (Pol. Paweł Holszański) (ca. 1492-1555), the last representative of the influential Alšėniškis family in the GDL, had an exceptional library. Supralibros with the Alšėniškis' family coat of arms in the center of the book cover. Around the coat of arms are the words Paulus D. G. epus Vilnen. Dux Olschanensis