On ROKU I watched the older TV series of Indiana Jones when he was a boy and in one of the series which supposedly took place in Egypt in the 1920-30's he made a friend of a boy slave of an Egyptian familyThe French had galley slaves until thr Revolution 1789. They were mostly Christians who had been caught attending services and sentenced to the galleys for life. Women were jailed. Pastors were sentenced to have their bodies broken on the wheel and then hung. Not an easy life for Christians in those days. I have a book which I bought at the Calvin Museum in Noyon, which has a picture of a long line of men sentenced to the galleys all chained together with guards beating them with whips as the went along. They is also a picture of a "Batard" flogging a man on the galley with a long flexible baton.