Kate Middleton often expresses her desire for more children at royal engagements.

She has always wanted four children with Prince William, according to a report by Marie Claire.

An insider source claims that Kate has been talking about wanting another baby for a while now.

Initially, Prince William was content with having three children.

However, Kate convinced him to have a fourth child.

The couple currently has three children - Prince George, Princess Charlotte, and Prince Louis.

They are grateful and blessed to have their three children.

If a fourth child were to come along, they would welcome it with open arms.

Princess Diana, William's mother, also wanted four children.