The Most Illustrious Order of Saint Patrick
Knights Created under George IV (1820–1830)
- Prince Ernest Augustus, Duke of Cumberland and Teviotdale, Later Ernest Augustus I, King of Hanover (1771 –1851) 1821
- George Chichester, 2nd Marquess of Donegall (1769 –1844) 1821
- Du Pre Alexander, 2nd Earl of Caledon (1777 – 1839) 1821
- Charles Chetwynd-Talbot, 2nd Earl Talbot (1777 – 1849) 1821 Resigned in 1844 when made KG
- James Butler, 19th Earl of Ormonde, Later 1st Marquess of Ormonde (1777-1838) 1821
- John Brabazon, 10th Earl of Meath (1772 –1851) 1821
- Arthur Plunkett, 8th Earl of Fingall (1759 –1836) 1821
- James Stopford, 3rd Earl of Courtown (1765 –1835) 1821
- Robert Jocelyn, 3rd Earl of Roden (1788 – 1870) 1821