short; he died eight months later, on 21 November, a victim of smallpox. Without issue, the House of Piast became extinct in the male line with him. Louise retained her dower lands and retired to Oława, where she spend her last years constructing the Baroque Silesian Piast mausoleum at the church of St. John the Baptist in Legnica, also called the Piasteum, where she had buried the remains of her husband, son, and some of their ancestors. She died in 1680 and was buried next to her husband. Her estates were taken over by her overlord, the Habsburg king of Bohemia. References Genealogical database by Herbert Stoyan This article was translated from its original in the Polish Wikipedia Louise 1631 births 1680 deaths 17th-century German people Duchesses of Legnica People from Dessau-Roßlau Daughters of monarchs