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.
Relics & Shrines
His relics were uncovered on June 10, 1609, during Russia's Time of Troubles, and transferred to the Ryazan-Dormition (later renamed Nativity) church within the Kremlin of Ryazan-Pereslavl, where they were placed in a reliquary at the left kleros near the iconostasis. The uncovering and transfer were overseen by Archbishop Theodoret of Ryazan, who served from 1605 to 1617.
In 1638 Archbishop Moses commissioned a stone crypt over the relics, and in 1645 the first formal celebration of the relic transfer took place. In 1712 Metropolitan Stephen Yavorsky oversaw the construction of a stone chapel at the original burial site, and a formal investigation was conducted under Tsar Peter I in 1722–1723. He became a local intercessor figure, with icons appearing throughout the Ryazan diocese and weekly Akathist services continuing in the cathedral.
Veneration and commemoration
The monk Erazm Ermolaev documented Basil's life around 1540 in an account titled 'An Account of Basil, Bishop of Ryazan and Murom.' The June 10 feast was established to commemorate the finding of his relics.
In 1881 the Holy Synod established two official commemoration dates: July 3, marking his death, and June 10, marking the transfer of his relics. In the Synaxis of the Saints of Ryazan he is listed as 'Bishop +1295' and commemorated on April 12, May 21, July 3, and on the Sunday of All Saints, confirming his place in the Ryazan local calendar as one of its primary patron saints. He is numbered among the Post-Schism Orthodox saints commemorated on July 3 (July 16 on the Old Calendar).