1. Add MS 39270 D Reference (shelfmark): Add MS 39270 D Title: Scope & Content: D. " Clann Briain Eatharlach ": descendants of Donnchadh, son of Brian Bóromha. Donnchadh, son of Brian Bóromha: Descent of Clann Briain Eatharlach, his descendants: 20th cent. O'Brien, Earls of Thomond: Pedigrees of: 20th cent. Collection Area: Western Manuscripts Languages: English Date Range: 1900-1915 Extent: 1 item