I have found this poignant painting on Rorate Caeli by Louis Duveau, A Mass at Sea in 1793 (1864) in the Musée des beaux-arts in Rennes. Click on the image to get an enlargement.
1793 was the height of the Terror in France and the persecution of the Church. Saying Mass at sea was one possibility. The sea looks fairly rough and the two-masted lugger seems to be hove-to judging by the helmsman keeping the boat’s bow into the wind. The sails are doused but are certainly maintaining enough steerage. The priest is in vestments. There are no candles or cross on whatever is being used as an altar. He must be having a difficult time keeping his balance and preventing an accident with the chalice. The painting is remarkably authentic and the artist was observant about the details of the lug rig. The boat looks a trifle overloaded with people attending the Mass.
The image was appended to an article about the state of the Church in Italy. I get tired of reading about prospects of divine chastisement because girls are showing a little bit too much tit! I learned a lot in the 1980’s seeing large traditionalist families – father at one end in the pew, mother at the other end and the six or eight children ranked like pipes in an organ, balai dans le cul. They live in the Victorian era at home and in the modern world elsewhere. The tension must be intolerable. Morality isn’t just about being prudish, but about going much more radically into questions of society. Things like contraception and “gender theory” are merely red herrings. Rorate Caeli maintains a conservative traditionalist Roman Catholic position which has its limits.
The painting is impressive.