alternatehistory.com

OTL, King Henry II of England ruled a vast Angevin Empire which consisted of lands in England and France. He suffered a great revolt against his rule by his traitorous sons; Young Henry, Richard, and Geoffrey. This revolt was encouraged by the opportunistic and ruthless King Louis VII of France and his son, Philip. The only son that remained loyal to King Henry was John who would go on to be the most hated English monarch TTL. Imagine that. King Henry crushed this revolt, called the Great Revolt, and apparently forgave his rebellious sons. Big mistake since he suffered two more revolts with the last one being a success.

What if he had been more ruthless in the aftermath of the first revolt, as he should have been such as excommunicating his rebellious sons and bequeathing his ENTIRE realm to his loyal son, John? Would the Angevin Empire continue for a lot longer instead of losing its French possessions only a few decades later?
Top