Rev. Alban Butler (171173). Volume III: March. The Lives of the Saints. 1866.
St. Mackessoge, or Kessoge, Confessor
[Bishop in the provinces of Levin and Boin in Scotland.] BY his instructions and counsels the pious King Congal II. governed with extraordinary prudence, zeal, and sanctity. This saint was illustrious for miracles, and died in 560. A celebrated church in that country still bears the title of Saint Kessoge-Kirk. The Scots for their cry in battle for some time used his name, but afterwards changed it for that of St. Andrew. They sometimes painted St. Kessoge in a soldiers habit, holding a bow bent with an arrow in it. See the Aberdeen Breviary, the chronicle of Pasley, (a great monastery of regular canons in the shire of Renfrew,) Florarium, and Buchanan, l. 5.