Marcello Venusti
Martirio di S. Giovanni Evangelista
16th century
Fresco
Church of Santo Spirito in Sassia, Rome
The label at the church names this the "martyrdom" of St. John the Evangelist, but in the legend the boiling in oil did not succeed in killing the saint.
Read more about St. John the Evangelist.
Photographed at the church by Richard Stracke, shared under Attribution-NonCommercial-ShareAlike license.