Coat of arms of HRH Prince William, Duke of Cambridge from 2011 to 2022. Created when he was bestowed the title Duke of Cambridge. Disused when he became Duke of Cornwall and Duke of Rothesay upon his father's accession to the throne on 8 September 2022. Blazon:
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Quarterly, 1st and 4th Gules three lions passant guardant in pale Or armed and langued Azure (for England), 2nd quarter Or a lion rampant within a double tressure flory-counter-flory Gules (for Scotland), 3rd quarter Azure a harp Or stringed Argent (for Ireland), with over all a label of three points Argent the central point charged with an Escallop Gules, the escutcheon ensigned by a coronet of a child of the Heir-apparent, the whole surrounded by the Garter, for a crest on a coronet of his rank, thereon a lion statant guardant Or crowned of the same coronet charged with a label as in the arms, for supporters, dexter a lion rampant guardant Or crowned by the same coronet, sinister a unicorn Argent armed, crined and unguled Proper, gorged with the same coronet, attached thereto a chain affixed thereto passing between the forelegs and reflexed over the back also Or, both charged on the shoulder with a label as in the arms.

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Own work
Sodacan