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Flag of the Commonwealth (1649-1651).
Flag of the Commonwealth (1651-1658).
The Commonwealth Flag (also known as the Commonwealth Jack) was the flag of the Commonwealth of England which replaced the Kingdom of England in 1649. In contrast to the Union Flag which it replaced, it consisted of just two symbols. The left two quadrants contained an elongated version of St George's Cross, representing England, while the right two quadrants contained an Irish harp symbolising Ireland. The Commonwealth Jack contained no representation for Scotland. The flag was replaced in 1651 with a new one with a quarterly design featuring the flag of England first and fourth, and the flag of Scotland in and second and third. This flag then was replaced by the Protectorate Jack in 1658. It in turn was replaced by the returned Union Flag in 1660, following the restoration of the monarchy and of the Kingdoms of England, Scotland and Ireland.
National flag (Union Flag) • 
Royal Standard
England • 
Scotland • 
Wales
Union Flag (1606-1801) • 
Ireland (1783-1922) • 
Northern Ireland (1953-1972)
Blue Ensign • 
Red Ensign • 
White Ensign • 
Royal Air Force Ensign • 
Civil Air Ensign
