Gawain and Dame Ragnelle—and in John Gower's Middle English poem Confessio Amantis. In another story, the succession is not settled when Eochaid dies, and Mongfind's brother Crimthann takes the high kingship. But while he is away on a tour of his lands in Scotland, Mongfind's sons seize Ireland. Crimthann returns to Ireland intending to give battle. Mongfind, purporting to make peace between her brother and her sons, holds a feast, at which she serves Crimthann a poisoned drink. Crimthann refuses to drink it unless she does too; they both drink, and both die. Niall succeeds to the High Kingship, and Brión becomes his second in command. Another version has Mongfind try to poison Niall, but she takes the poison herself by mistake. While Niall is high king, his brothers establish themselves as local kings. Brión rules the province of Connacht, but Fiachrae makes war against him. Brión defeats Fiachrae and hands him over as a prisoner to Niall, but Fiachrae's son Nath Í continues the war and eventually kills Brión. Niall releases Fiachrae, who becomes king of Connacht and Niall's right-hand man. Fiachrae and Ailill then make war against Crimthann's son Eochaid, king of Munster. They defeat him and win great spoil, but Fiachrae is wounded in the battle and dies of his wounds shortly afterwards. The Munstermen renew the battle, capture Ailill and cut him to pieces, and war continues between Munster and Connacht for many years. Death The Lebor Gabála Érenn says there was war between Niall and Énnae Cennsalach, king of Leinster, over the bórama or cow-tribute first imposed on Leinster by Tuathal Techtmar. Énna's son Eochaid is named as Niall's killer in all sources, although the circumstances vary. All sources agree he died outside Ireland. The earliest version of the Lebor Gabála says Eochaid killed him on the English Channel, later versions adding that Niall was invading Brittany when this happened. Keating, quoting a Latin Life of Saint Patrick, says that Niall led Irish raids on Roman Britain, and in one of those raids Patrick and his sisters were abducted. Keating associates these raids with those mentioned by Gildas and Bede, and deduces that, since some Irish sources say Patrick was abducted from Brittany, that Niall's raids must have extended to continental Europe as well. In the saga "The Death of Niall of the Nine Hostages", Eochaid's enmity with Niall begins when he is refused hospitality