MacLysaght 1949, p. 61: "the 'azure three antique crowns or' of Munster was, without question, regarded as the Arms of Ireland prior to the adoption by Henry VII and Elizabeth of the harp motif". MacLysaght, Edward (1949). "Some Observations on the Arms of the Four Provinces". The Journal of the Royal Society of Antiquaries of Ireland. 79 (1/2). Royal Society of Antiquaries of Ireland: 60–63. JSTOR25510686.
MacLysaght 1949, p. 62: "Betham records [..] that the Vice-Admirals of the four provinces used respectively: [..] Munster: Gules a cubit arm fessways holding a sword erect all proper". MacLysaght, Edward (1949). "Some Observations on the Arms of the Four Provinces". The Journal of the Royal Society of Antiquaries of Ireland. 79 (1/2). Royal Society of Antiquaries of Ireland: 60–63. JSTOR25510686.
Kennedy 1991, "the arms of the lordship, the three crowns arms within a bordure Argent, were granted to Robert de Vere as an augmentation by Richard II in 1386 [..] Munster’s arms, which appear to have been derived from those of the former lordship (A) above". Kennedy, John J (1991). "The Arms of Ireland: Medieval and Modern (from Coat of Arms no 155 Autumn 1991)". nli.ie. The Heraldry Society.
