 Mellitus ( died 24 April 624 ) was the first Bishop of London in the Saxon period , the third Archbishop of Canterbury , and a member of the Gregorian mission sent to England to convert the Anglo @-@ Saxons from their native paganism to Christianity . He arrived in 601 AD with a group of clergy sent to augment the mission , and became the leader of the group .
 nobody knows the exact date of his birth , but it is believed to be around 620 AD .
Mellitus was a member of the Gregorian mission , and the third Archbishop of Canterbury . He was a member of the Gregorian