Is there an aquatic church we don’t know about? Three centuries after John Stow’s sea monk escaped, a “bishop-fish” was caught and taken to the king of Poland. It gestured to a group of Catholic bishops, appealing to be released, and when they granted its wish it made the sign of the cross and swam away.
Another bishop-fish was reportedly caught near Germany in 1531. This one refused to eat and died after three days.
Swiss naturalist Conrad Gesner, who described it in his Historia Animalium, also refers to monk-fish caught off Norway and in the Firth of Forth. Someone ought to take up a collection.