Swart revealed spelling variations , including Swords, O'Sword, O'Swerte, Swoordes, Sourdes, Swerdes, Clavin and many more. First found in Counties Offaly , Leix , and Kildare , where in 1016, the successor of St. Brigid, abbess of Kildare, was named O Suairt according to the Four Masters.   More More about