Bede (672 - 26 May 735), also referred to as Saint Bede or the Venerable Bede, was an English monk at the Northumbrian monastery of Saint Peter at Monkwearmouth and of its companion monastery, Saint Paul's, in modern Jarrow, both in the Kingdom of Northumbria. Bede's monastery had access to a superb library which included works by Eusebius and Orosius among many others. An author and scholar, his most famous work, Historia ecclesiastica gentis Anglorum (The Ecclesiastical History of the English People) gained him the title "The Father of English History". This work in Latin by Bede on the history of the Christian Churches in England, and of England generally; has as its main focus the conflict between Roman and Celtic Christianity. It is considered to be one of the most important original references on Anglo-Saxon history and has played a key role in the development of an English national identity. It is believed to have been completed in 731, when Bede was approximately 59 years old.