The remainder of province of Silesia that was not ceded to Poland and Czechoslovakia was split into the provinces of Upper Silesia and Lower Silesia in 1919 – although they were temporarily recombined (1938–1941).
Sileesia provintsi jäänuk, mida ei loovutatud Poolale ja Tšehhoslovakkiale, jagati aastal 1919 Ülem-Sileesia ja Alam-Sileesia provintsideks – kuigi neid ühendati ajutiselt (1938–1941).