Any transgressive behavior will plant mines for the future.
"Enough, you decide what to do yourself!
I'm going to retreat now; don't disturb me unless it's important!"
Having said this, Alpha the First waved his sleeve and left this sad place.
Time can dilute everything, and deep down he has made up his mind, never to come out of retreat until the storm passes.
Caesar IV's political achievements are plentiful, and the political tactics displayed exceed the passing grade. The probability of forcibly seizing power is not high.
Hard pushing won't work, so retreat for now and let time pass.
He doesn't believe the Kingdom's fortune will remain strong, nor that future successors will be capable rulers, especially since Caesar IV currently doesn't even have a descendant.
Either suffering from a physical illness or injured when young, resulting in difficulty in having descendants.