Gaude Mater Polonia - Anthem of First Polish Republic

One of two anthems of First Polish Rzeczpospolita. The Rzeczpospolita is also known as Polish-Lithuanian Commonwealth, Republic of Both Nations (pol. Rzeczpospolita Obojga Narodów), The Brightest Republic (lat. Res Publica Serenissima), or just - Poland. Gaude Mater Polonia (Rejoice, oh Mother Poland) was probably the most popular medieval Polish anthem, written in the 13th-14th century in memory of saint Stanisław Szczepanowski, bishop of Kraków. Polish knights used to sing it after victory in battle,