Vyvyan Basterd
Adventurer
my noble czar wizard is going to be better at the court dances than the street urchin rogue kid who is more dexterous, and the templar paladin who is more charismatic.
That's easily covered. Circumstance bonus and/or penalty for those involved in the court dance. Or, the DM deems your character best of the three specifically because of his background with no skill roll required. The bonuses to ability/skill checks need not be a measuring stick of how good you are, nor does every action your character takes need a check.
Also, just how much training in court dancing does your noble czar wizard have since he went off adventuring? An NPC noble czar wizard can afford to spend further resources on court dancing and gain those additional +1s mentioned in the article. Your PC noble czar wizard could as well if that is what truly interests you.