Scenes from the Life of St. Christopher
Russian, dated pre-19th century on the Wikimedia page
The capture of Christopher is shown on the lower left; his trial before the king, on the upper right. The attempt to kill him on a burning bench is in the middle on the right. Those three episodes are in the Passions listed on the St. Christopher page. I am not yet able to interpret the other episodes.
More of St. Christopher
Source: Wikimedia Commons