Sitriuc succeeded his brother Sichfrith as King of Dublin in 888.[1] For most of Sitriuc's reign, and for the decade preceding it, Dublin was weakened by internal strife and dynastic feuds. Sichfrith had been a victim of these; he was killed by an unnamed kinsman of the Uí Ímair.[2] However, despite these problems the Dubliners fought successful wars against the forces of Leinster and the Southern Uí Néill.[1] In 893 Sitriuc was challenged for the control of Dublin by one Jarl Sichfrith[nb 1], with both claiming the title of king.[3] Sitriuc and Sichfrith left Dublin separately that year for military campaigns in Britain, and although Sitriuc returned a year later it is unknown which of the two, if either, retained the title of king.[1]
Sitriuc was killed by a number of other unnamed Vikings in 896.[4] His death coincided with the death of two other prominent Vikings, Glúntradna son of Glúniarann and Amlaíb, grandson of Ímar, marking a serious drop in the political stability of the kingdom.[5] It has been speculated the aforementioned Glúniarann succeeded Sitriuc as king.[1]
CELT: Corpus of Electronic Texts at University College Cork. The Corpus of Electronic Texts includes the Annals of Ulster and the Four Masters, the Chronicon Scotorum and the Book of Leinster as well as Genealogies, and various Saints' Lives. Most are translated into English, or translations are in progress.