After 1360, Peter owned a house in Prague Castle Square and had been elected city alderman. His first wife Gertrude died in the late 1360s and he returned to Cologne to dispose of her inheritance in 1370. He then married Elisabeth Agnes von Bur in 1380 and in the same year bought a second house on Castle Square. From this marriage two more children were born: Johann, who possibly became a stonemason in Zagreb; and Paul, about whom no information survives. He may have had other children as well. The purchase of the houses, the marriage of his daughter, and the number of his children led to some legal disputes. Peter Parler is known to have relinquished both houses to his second wife and their children.