Paulinus of York was a Christian missionary and the first Bishop of York in the early 7th century. He played a significant role in the spread of Christianity in northern England, particularly among the Anglo-Saxons. Sent by Pope Gregory I, Paulinus arrived in Britain around 601 AD and worked alongside other missionaries to establish the church. Paulinus is best known for baptizing King Edwin of Northumbria in 627 AD, which marked a pivotal moment in the Christianization of the region. His efforts helped lay the foundation for the growth of Christianity in England, influencing future generations of believers and leaders.