Olaf of Roskilde
Olaf of Roskilde (also Olav; died 1350) was Bishop of Reval (modern-day Tallinn). He was appointed Bishop of Reval in 1324. He played a role in the events following the Saint George's Night Uprising, inviting the Teutonic Order to Danish Estonia to quell the rebellion. When Estonia was sold to the Teutonic Order three years later, Olaf was one of the witnesses of the contract.