1 of the royal family will die unless the tyrant is unlucky, and the rest of the royal traitors live in prison.

The Lisu rebellion in big noble generally killed a group of other Lisu exiles. If there is only one, it depends on the political relationship at that time. Some of them were killed, but many more were under residential surveillance.

Small aristocrats generally have little chance to turn over, and being deprived of territory is worse than death.

Of course, whoever rebelled was deprived, and it was impossible to rebel without territory.

Generally speaking, the autocratic power in medieval Europe was weak, and chivalry clearly demanded respect for prisoners, so the rebellion was not so serious. Besides making an example, it ended up as miserable as China.

It's up to you to call so many times. What can you add?