There is a really good book on it if you are interested: "The Extinction of the Ancient Hierarchy" by G.E. Phillips (1905). It can be found on Amazon and also through Interlibrary loan.
Eleven English bishops languished to death in prison as forgotten men by the government.
People are unaware of this.
The great uncle 10x removed of our 1960s bishop here was one of the Irish martyrs. Dermot O’Hurley had been peacefully teaching Latin in the seminary in Douay and then was appointed archbishop of Cashel, the primatial see (this was after the English invasion of Ireland). He was recognized by one of Elizabeth’s spies as soon as he arrived, was captured and imprisoned for six months, while they did things like pour boiling oil into the thigh-high leather riding boots that they had put on him. Then they hanged him outside the city gates of Dublin at the express orders of Elizabeth I.