The King's School in Parramatta is being investigated by the child sex abuse royal commission, which is asking for anyone with information about alleged molestation at the school to come forward.

The royal commission into child sex abuse is asking for information about the King's School. Credit:Wolter Peeters

Headmaster of the King's School Timothy Hawkes gave evidence at the Royal Commission into Institutional Responses to Child Sexual Abuse when it held a public hearing into Knox Grammar School, where he was previously employed.

Royal Commission chief executive Philip Reed said the inquiry was investigating how institutions, including schools, responded to allegations of child sexual abuse.