Episcopate at Murom and Ryazan
Basil served first as bishop of Murom before relocating to Ryazan. He is listed as the fourth bishop in the ancient list of Ryazan hierarchs, an attestation of an early episcopate at Ryazan. He appears in the Laurentian Chronicles and is mentioned among the early Ryazan hierarchs.
His episcopate fell in a period of severe pressure on the Ryazan church. In December 1237 the Mongol Horde under Batu Khan besieged the Principality of Ryazan; after the city fell, the old capital was never rebuilt and the principality's seat was eventually relocated to Pereyaslavl-Ryazansky in the fourteenth century. Basil died in 1295.
By tradition, the citizens of Murom unjustly accused Basil of serious misconduct unbecoming a bishop. After extended prayer he departed toward the River Oka, and the synaxarion relates that, spreading out his bishop's mantiya upon the water, he stood upon it while holding the icon of the Most Holy Theotokos of Murom. Strong winds are said to have carried him upstream so that within hours he reached Ryazan, where the prince and people received him with respect. During his lifetime the Ryazan people recognized him as virtuous and pious and regarded him as their constant intercessor and helper in sorrows and travail.