Quarterly, First quarter, Per pale, dexter, Gules three lions passant guardant in pale Or armed and langued Azure (for England), sinister, Or a lion rampant within a double tressure flory counter-flory Gules (for Scotland), Second quarter Azure three fleurs de lys Or (For France), Third quarter Azure a harp Or stringed Argent (for Ireland), Fourth quarter, 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.    

PINCHES, J.H & R.V., The Royal Heraldry of England, 1974, Heraldry Today.