Please add back the "Character History" button from EU-Rome. It was very simple but an amazing feature to keep track of characters' deeds.
It showed everything a character did of note from birth to death, in a simple list. Every position they held in the Senate/courts, every choice they made in a public event, every governorship they held, every battle and war they participated in and earned distinctions in, every happiness and tragedy they suffered. Their family life and every child they had or lost. Every friendship and rivalry they had. Every crime they committed and were caught for it, every affair they took part in. It was a mini-archive of sorts, and way better than either EU4's History button or CK2's Chronicles. Great for AARs and immersion in general, watching your character rise and fall through his deeds and conditions.
After a hundred years into the game, it was interesting to look back at characters of previous generations and see how they lived their lives. There was one woman who murdered her rich husband for her senator lover, was caught and executed by the AI. There was a man who was born in a poor aristocratic family and lost his father early, but grew up to be a tough general and led campaigns against Persia, and died of an illness in old age as the governor of Egypt. There was this Greek nobleman who rose through politics and became leader of Athens by commanding their navy against Rome, but as soon as he was given a province he rebelled and proceeded to take over Athens, become a tyrant before ultimately being assassinated five years later.
The history window looked something like this:
Maybe you could expand a bit on it. Make it more complex, with better sentence structure. Add more things and events to record, and in a more sensible way. Make the names and things selectable to be able to jump and read their stories, and so on.
It was a great feature and should not go away.