Mac Gradoigh (Mag Raidhin, MacGrane), Aughuistín (Augustine) (c.1349–1405), Augustinian canon regular and author; his background is unknown, but he may have been from Co. Meath. He belonged to the monastic community of Oileán na Naomh (Saints’ Island), in Lough Ree, on the river Shannon (Co. Longford), where he compiled a collection of local Irish annals, from 1309 to 1407, now surviving in Bodleian MS Rawlinson B. 488, ff 29–34. These annals have frequently been misidentified as a continuation of the annals of Tigernach Ua Bráein (qv). They are written in Augustine's hand up to 1404, and thereafter by a continuator from the same community. He has also been identified from a colophon as the author of a translation of the apocryphal ‘Acta Iohannis’ (‘Beatha Eoin Bruinne’), which is related to the version in Jacopus de Voragine's ‘Legenda Aurea’. His obit in the continuation of the annals compiled by him describes him as the compiler of ‘Lives of saints and histories’, but no certain evidence has as yet linked him with any extant collection. He died in his fifty-sixth year, on 28 October 1405.
Sources
AFM, ii, 755; Colgan, Acta SS Hib., 5; S. Ó hInnse (ed.), Miscellaneous Irish annals (1947), pp xiv–xvi, 176–7; G. Mac Niocaill, ‘Beatha Eoin Bruinne’, Éigse, vii (1953–5), 248–53; viii, 222–30; B. Ó Cuív, Catalogue of Irish language manuscripts in the Bodleian Library at Oxford and Oxford college libraries. Part 1 (2001), 141–53 (MS no. 32)