William had the help of the family’s nanny, Maria Teresa Turrion Borrallo.

Borrallo has been with the family since Prince George was just 8 months old.
“She is not married and doesn’t have a boyfriend, as her life is totally dedicated to the family she is working with. She is known for being totally professional – married to the job,” an insider told Hello Magazine.

When the couple are away from home, the nanny makes all the decisions regarding the children.

Borallo was trained at the prestigious Norland College in Bath. “Maria is firm, but she never acts unilaterally with the children on discipline. Kate and William, along with Maria, are strict with the children but have this magic ability to appear not to be,” a royal insider said.

A royal insider previously said, “Maria is firm, but she never acts unilaterally with the children on discipline. Kate and William, along with Maria, are strict with the children but have this magic ability to appear not to be.”