End of 15C. The son of the Pope's treasurer, Francesco Cenci was immensely rich and had already bought off the courts when tried for sodomy. His fine: a crippling 100,000 scudi. He was a terror to his 12 children with his violent temper.
After a particularly fierce argument with some of his offspring he took his wife and Beatrice to a castle outside of Rome.
1598. Beatrice found solace with the castle keep, Olimpio, and hatched the plot to kill her father with the connivance of her stepmother, two brothers and Olimpio.
They bludgeoned him to death as he slept.
First imprisoned, Beatrice and her stepmother were then beheaded on Piazza di Ponte Sant'Angelo, while brother Giacomo was tortured with hot pincers, bashed with a mace, and then drawn and quartered.
The younger brother fared better. He was let out for good behavior after just one year in prison.
The Pope confiscated all their properties and the Cenci family fell into oblivion.