Coat of Arms of King Henry IV of England
Francis Sandford's 'Genealogical History'
The British Library. Add Ms 71511. Skelton, Bevil. The variations of the arms and badges of the severall kings of England ca 1684-87.
The Digital Walters W.847, Book of English heraldry
Stained glass window of Rochdale Town Hall, Greater Manchester
St George's Chapel, Windsor Castle
The Heraldry Society
Stained glass at Sudeley Castle, Gloucestershire
Muttum with elements of Sodacan