Bogumił was an eleventh-century archbishop of Gniezno in Poland. Although he held a significant religious position during a formative era for the Polish state, historical documentation regarding his life remains limited. He was ordained as a bishop around 1075, a year in which he presided over the coronation of King Bolesław II the Bold at the rebuilt Gniezno Cathedral. His tenure coincided with political tensions involving the monarchy and other high-ranking clergy members.