Lazarus of Murom was a 14th-century monk originally from Constantinople who became a significant religious figure in northern Russia. After living in a monastic community under Bishop Vasily in Novgorod, he moved to the uninhabited Much Peninsula on the shores of Lake Onega in 1352. There, he established the Murom Holy Dormition Monastery and engaged in missionary work among the local Lop people. He died in 1391 at the age of 105 and is venerated as a saint in the Eastern Orthodox tradition.