Sir Gillium

Sir Gilliam is the Racing Derby Coach of the Royal Preparatory Academy. When Princess Sofia announces she wants to try out for the team, he, along with the attending princes and princesses, tried to explain that derby-racing was a "prince thing" and not a "princess thing", Sir Gilliam apparently worried of Sofia hurting herself.

She didn't take no for an answer however, and Sir Gilliam directed her to the last winged horse available, Minimus.

But when the try-out race came, Sir Gilliam watched as Sofia, along with her brother, Prince James, managed to win the race together, and he proudly awarded them the Racing Derby jerseys.

He apeared again in The Shy Princess, having brought in Minimus for the art class to paint as the winged horse modeled, and leading him back out once the painting was over.