3rd (Prince of Wales') Dragoon Guards

Chronology

1685 raised as the Earl of Plymouth's Regiment of Horse and ranked as the 4th Regiment of Horse
1687 renamed the 4th Regiment of Horse
1746 renamed the 3rd Dragoon Guards
1751 renamed the 3rd Regiment of Dragoon Guards
1921 renamed the 3rd Dragoon Guards (Prince of Wales's)
1922 amalgamated with the 6th Dragoon Guards (Carabiniers) to form the 3rd/6th Dragoon Guards
1928 renamed the 3rd Carabiniers (Prince of Wales's Dragoon Guards)
1971 amalgamated with The Royal Scots Greys (2nd Dragoons) to form The Royal Scots Dragoon Guards (Carabiniers and Greys) (SCOTS DG)