The problem is that Trump's depravity is recognized and could potentially result in trial and imprisonment now in the modern age. If a monarch acted the way he does, there'd be whispers among the help but otherwise he'd be regarded as just another aristocrat.

Sex with kids wasn't even a major scandal until the 1970s. (The Satanic Panic was essentially a reaction to researchers discovering that a large chunk of the male adult population would gladly have sex with children, including their own daughters if they were drunk enough.)

Hence when Daenerys Targaryen was only fourteen thirteen when she first performed her marital duties with Khal Drogo, modern audiences were aghast while historians thought that tracks.

I think he is at least the current champion. I can’t even imagine anyone beating his record