There is something wrong with the world. Valentine will do anything to fix it.
Valentine loved and feared and respected his father and believed in his values, until those values killed his father - or they loved and feared and respected a parent-figure until that parent-figure betrayed them and turned them against said parent-figure (and sometimes the parent-figure's people). They are usually born poor to a family with a grand history, and marry into a rich, more prestigious family. They usually engage in experiments to improve their children using magic and/or genetic engineering.
Loves their children; loves their partners.
Will kill those they love themself if it will fix what's wrong with the world.