 Complete the following phrase:  Ryszard Kaczorowski was born on 26 November 1919, in a wooden house at 7 Mazowiecka Street in Piaski District of Białystok. The house stood at the intersection of Mazowiecka Street with the no longer existing Argentyńska Street., Białystok, Poland. His parents were Wacław Kaczorowski, of Jelita and Jadwiga née Sawicka. In 1920, when Białystok was overrun by Soviet forces during the 