Celebrated for their contribution to Irish literature, Celtic medical lore and the religious life of the island, bearers of the name of Cassidy flourished for centuries in the ancient province of Ulster.
• As hereditary physicians to the Maguire chiefs of Fermanagh, they shared in both their fortunes and misfortunes and became victims of the final collapse of the Gaelic order.
• The colourful and prominent tale of the Cassidy Clan is recounted here.