O'Sullivan Family Crest mug - with robins

An O'Sullivan Family Crest mug is a meaningful choice as a Father’s Day gift and it's also guaranteed to get a happy reaction as a Christmas or birthday present.Beautifully illustrated. Carefully researched. Uniquely personal.

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The O'Sullivan Beara family crest featuring the two counterchanged boars split vertically on a black and white field was formally recognised and recorded in genealogical literature during the late nineteenth century. It was systematically codified by the genealogist John O'Hart in his landmark publication, Irish Pedigrees; or, The Origin and Stem of the Irish Nation, first published in 1876 and expanded in subsequent editions through 1888. O'Hart explicitly registered this specific blazon under the heading of the Lords of Beara, County Cork, providing it with formal print legitimacy as the designated variant to separate the West Cork branch from the primary O'Sullivan Mór line of County Kerry. This distinct coat of arms therefor represents the secondary major branch of the dynasty, known as the O'Sullivan Beare sept. Following internal expansions and territorial shifts in the medieval period, this branch established independent lordship over the Beara Peninsula and Bantry Bay regions in West County Cork. Their main defensive stronghold was situated at Dunboy Castle.

The symbolism of the O'Sullivan Beara family crest

The official blazon defines the arms as a quarterly shield divided into alternating squares of black (Sable) and silver (Argent). It is charged with two boars passant counterchanged, meaning the upper boar is silver on a black field and the lower boar is black on a silver field. In the language of traditional arms, a quarterly field represents an established estate or territory, while the boar is a classical Gaelic symbol used to represent a fierce warrior status and resilience under attack. The crest resting above the coronet is identical to the main Mór lineage, displaying the robin holding a green sprig while perched upon a lizard. The family scroll retains the shared historic Gaelic war cry, An lámh fhoisteanach abú.

Artist's Note: While this design is officially recorded by the genealogist John O'Hart and in Burke’s The General Armory, it is absent from early historical printed volumes on Irish heraldry, such as Aaron Crossly’s The Peerage of Ireland, published in 1725 (the first major printed work on Irish heraldic peerages). Edward MacLysaght, Chief Herald of Ireland from 1943 to 1954, classified the entry as problematic. To compound the mystery, a much older 1613 Salamanca portrait of Donal Cam O'Sullivan Beare shows him standing beside a totally different coat of arms. Exactly when this crest first appeared remains an unsolved mystery. My feeling is that it was likely a product of the early Victorian-era boom in commercial genealogy. Throughout the 19th century, Dublin Castle began officially confirming variations of ancient arms for descendants of the "Wild Geese" (Irish families who had fled to Europe or colonies abroad) who were returning to register their lineages. Whatever the case, it's a fine looking crest that has woven its way mysteriously into the Cork side of O'Sullivan story.

Notable Historical Figures

The historical prominence of this specific armorial line is centered on Donal Cam O'Sullivan Beare (1561–1618), the last independent ruler of the local sept. Following the historic Battle of Kinsale and the prolonged Siege of Dunboy in 1602, his forces were driven from their Cork strongholds. He subsequently led one thousand followers on an epic fourteen-day winter march across Ireland to the safety of Leitrim Castle, surviving constant military ambushes and severe weather. He later immigrated to continental Europe, where King Philip III of Spain recognized his royal lineage and invested him as a knight of the Order of Santiago and the first Count of Birhaven. This version represents the documented armorial lineage for families tracing their ancestry to the Cork sept and the Beara Peninsula.

About the artist

Each coat of arms in the Family Crests Store is an artwork by heraldic artist Éamonn Breathnach. All are carefully researched, drawing from the earliest available records across multiple heraldic archives. Noted for their elegance and attention to detail, these artworks make meaningful and uniquely personal gifts for any occasion with family and friends.

Product details

• High quality white ceramic mug
• Dishwasher and microwave safe
• 15 oz mug dimensions: 4.7″ (11.9 cm) in height, 3.3″ (8.5 cm) in diameter
• Lead and BPA-free material (complies with US and EU safety standards)