Timeline
Feb 1945

Achiel Van Acker I & II
1945-02-12 to 1946-02-13
Feb 1939

Hubert Pierlot I, II, III, IV, V & VI
1939-02-22 to 1945-02-12
May 1938

Paul-Henri Spaak I
1938-05-15 to 1939-02-22
Nov 1937

Paul-Emile Janson
1937-11-24 to 1938-05-15
Mar 1935

Paul van Zeeland I & II
1935-03-25 to 1937-11-24
Nov 1934

Georges Theunis II
1934-11-20 to 1935-03-25
Oct 1932

Charles de Broqueville II
1932-10-22 to 1934-11-20
Jun 1931

Jules Renkin
1931-06-06 to 1932-10-22
May 1926

Henri Jaspar I & II
1926-05-20 to 1931-06-06
Jun 1925

Prosper Poullet
1925-06-17 to 1926-05-20
May 1925

Aloys Van de Vyvere
1925-05-13 to 1925-06-17
Dec 1921

Georges Theunis I
1921-12-16 to 1925-05-13
Nov 1920

Henri Carton de Wiart
1920-11-20 to 1921-12-16
Nov 1918

Léon Delacroix
1918-11-21 to 1920-11-20
Jun 1918

Gerard Cooreman
1918-06-01 to 1918-11-21