Companions of the Hollow Knight

A prince recovering from a very bad experience (he was a frog for a while) sets out to make things right with a princess who mistakenly believes she caused his problems. Her castle is the second one on his route. First, he has a stop to make in another kingdom. Its ruler holds funds owed to the world's oldest wizard for solving a serious dragon problem. The prince offered to pick them up for the wizard, who is a friend. He is accompanied on his quest by Sir David, a hollow knight who started out