Arms of Bishop Peter Courtenay (d.1492), showing the arms of the See of Exeter impaling Courtenay of Powderham, incorporating heraldic badges of dolphins of Courtenay of Powderham, Hungerford sickles and Peverell garbs. Detail from the Courtenay Mantelpiece, Bishop's Palace, Exeter
^A Delineation of the Courtenay Mantelpiece in the Episcopal Palace at Exeter by Roscoe Gibbs with a Biographical Notice of The Right Reverend Peter Courtenay, DD,... To which is added A Description of the Courtenay Mantelpiece compiled by Maria Halliday, privately published at the Office of the Torquay Directory, 1884, p.10