My understanding about George V is that his son, future Edward VIII - an all-around asshole - was pressuring the doctor to euthanize him. So “the family” knew.

My understanding about George V is that his son, future Edward VIII - an all-around asshole - was pressuring the doctor to euthanize him. So “the family” knew. But the “the family” was more interested in securing his inheritance and title. Which is ironic considering how quickly he threw it away.