Prince William felt very sad when his wife, Princess Catherine, got cancer. His father, King Charles, also had cancer. This made it a very hard year for him. Catherine is now better, but Charles is still getting treatment.

Jason Knauf, who worked with William, said it was a tough time. People online said bad things about Catherine's illness. William and Catherine did not tell their children right away. William said it was the hardest year of his life.

Jason Knauf also talked about William's brother, Harry. He said it is sad that they have problems. Jason worked with both brothers and had good times with them. He respects William's choice to keep his feelings private.