[PL-PoA 76] Graduał cysterski z Obry

Graduale Ord. Cist. from Obra Abbey, from 1437. Written by Nicolaus Stiros de Boleslavia. Obbra Abbey was founded in 30ties of 13th century. Cistercian monks came from Łekno.

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PL-PoA 76
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Obra
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