Coat of Arms of the United Kingdom from 1816 to 1837 used by King George III, George IV and William IV

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Quarterly, First and Fourth Gules three lions passant guardant in pale Or armed and langued Azure (for England), Second quarter Or a lion rampant within a double tressure flory counter-flory Gules (for Scotland), Third quarter Azure a harp Or stringed Argent (for Ireland), over all an inescutcheon, ensigned by an arched royal crown, Tierced per pale and per chevron, First Gules two lions passant guardant Or (for Brunswick), Second Or semée of hearts Gules a lion rampant Azure (For Luneburg), Third Gules a horse courant Argent (For Hanover), an inescutcheon over all three, Gules the Crown of Charlemagne Proper (As Archtreasurer of the Holy Roman Empire), the whole surrounded by the Garter; for a Crest, upon the Royal helm the imperial crown Proper, thereon a lion statant guardant Or imperially crowned Proper; Mantling Or and ermine; for Supporters, dexter a lion rampant guardant Or crowned as the Crest, sinister a unicorn Argent armed, crined and unguled Proper, gorged with a coronet Or composed of crosses patée and fleurs de lys a chain affixed thereto passing between the forelegs and reflexed over the back also Or; Motto 'Dieu et mon Droit' in the compartment below the shield, with the Union rose, shamrock and thistle engrafted on the same stem.

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PINCHES, J.H &amp; R.V., The Royal Heraldry of England, 1974, Heraldry Today.
Own work
Sodacan