Justus was the fourth archbishop of Canterbury. Pope Gregory the Great sent Justus to England on a mission to Christianize the Anglo-Saxons, probably arriving with the second group of missionaries despatched in 601. Justus became the first bishop of Rochester in 604 and signed a letter to the Irish bishops urging them to adopt the Roman method of calculating the date of Easter. He also attended a church council in Paris in 614. Following the death of King Æthelberht of Kent in 616, Justus was forced to flee to Gaul but was reinstated in his diocese the following year. In 624, Justus became Archbishop of Canterbury, overseeing the despatch of missionaries to Northumbria. He died on 10 November, probably sometime between 627 and 631. After his death, he was revered as a saint and had a shrine in St Augustine's Abbey in Canterbury, to which his remains were translated in the 1090s (gravestone pictured). (This article is part of a featured topic: Members of the Gregorian mission.)