The following Treaty of Mellifont, made with Hugh O'Neill, England's most hard-core opponent, is reasonably representative. Under the treaty, after the Irish lost a war, were the following key terms:
1) O'Neill would be pardoned for his past rebellious acts.
2) O'Neill would get to keep most, but not all, of his lands.
3) English law would supplant Irish "brehon" law (a system somewhat similar to English case law).
4) O'Neill could no longer support the Catholic Church.
5) O"Neill could no longer support Irish bards (minstrels, storytellers of Irish lore).
6) English would be the official language. O'Neill would have to give up his Irish title in return for an English one, the Earl of Tyrone.
These terms were considered "generous" at the time, according to Wikipedia. Would they been considered so in later times by professional historians including today? Or would they be considered a form of cultural imperialism at some point?