By 800, there is evidence that churches in Ireland, Northumbria (England) and Bavaria (Germany) were holding a feast commemorating all saints on 1 November. Some manuscripts of the Irish "Martyrology of Tallaght" and "Martyrology of Óengus", which date to this time, have a commemoration of all saints of the world on 1 November. In the late 790s Alcuin of Northumbria recommended the holding of the feast on 1 November to his friend Arno of Salzburg, Bavaria. Alcuin used his influence with Charlemagne to introduce the Irish-Northumbrian Feast of All Saints to the Frankish Kingdom.