The Basilica of the Assumption of Our Lady in Old Brno Abbey is a high Gothic, monumental convent temple. It was founded in 980-1020 by the unknown lord or monarch in Moravia. It was built on the site of an ancient sanctuary from the late 10th century in a short time in the years 1323 to 1334 at the instigation of Queen Elizabeth Richeza. It is the best preserved stylistically coherent and unified temple in Lands of Bohemian Crown.

Elizabeth Richeza of Poland, was a Polish princess member of the House of Piast and by her two marriages Queen consort of Bohemia and Poland and Duchess consort of Austria and Styria. She was the only child of Przemysł II, Duke of Greater Poland and his second wife Richeza, herself a daughter of ex-King Valdemar of Sweden and Sofia of Denmark.