apostle of the Picts. Born in Ireland, he became a monk at Bangor (Co. Down) c.671; later he founded a monastery at Applecross (Ross and Cromarty) on the west coast of Scotland. From there he evangelized Skye and penetrated as far north as Loch Broom. He also built a church on an island in Loch Maree, where his spring was famous for its healing properties. Place-names such as Mulruby, Mury, and Summuruff also testify to his memory. Feast: 21 April (or 27 August).
W. Reeves, ‘St Maelrubba, his History and Churches’, Proc. of Soc, of Antiquaries of Scotland, iii (1861), 258–96;A. B. Scott, ‘St Maolrhuba’, S.H.R., vi (1909), 260–80;W. J. Watson, History of the Celtic place-names of Scotland (1926).