Britain's Catherine, Duchess of Cambridge (L), speaks to young people as she visits a photographic exhibition
Britain's Catherine, Duchess of Cambridge (L), speaks to young people as she visits a photographic exhibition entitled "Mute: are you being heard?" from a mental health project run by Ynys Mon and Gwynedd's local Mind charity in Caernarfon, Wales, Britain November 20, 2015. Reuters/Oli Scarff/pool

Kate Middleton is all set to attend Family School Christmas Party organised by the Anna Freud Center in London on Dec. 15. Kensington Palace announced the official engagement of the Duchess of Cambridge Tuesday. She will join children in their festive activities, to reflect the positive progress they have made this term.

Kensington Palace tweeted that Middleton’s visit shows her continued interest in child mental health and early intervention support for the whole family.

After giving birth to Princess Charlotte in May, the Duchess returned to royal duty by visiting the Anna Freud Centre in September. She has of late championing the issue and has carried out a host of related engagements this autumn.

The Duchess and her husband Prince William visited a project run by the charity Mind in North Wales in October. They also visited the Men’s Shed movement in Denbigh, a nationwide initiative that aims to improve the mental health and wellbeing of young men.

She attended a solo engagement, Headteacher conference in London, run by the charity at the Place2Be on Nov. 18. The royal made a rare public speech focused on the issue of child mental health. The 33- year-old royal spoke to students from The Crescent Primary School before attending the conference.

Last time when Middleton visited the Family School in September, she learnt how the charity helps children and young people who suffer with mental health problems. The charity provides support in homes and schools, and also has its special clinic in London.

During the visit, Kate was greeted warmly by chairman of the trustees Michael Samuel. He is the husband of Princess Diana’s friend Julia Samuel, who is Prince George’s godmother.

In another development, William said that family is planning to spend most of their first Christmas as a foursome at their family home in Norfolk, the Daily Telegraph reported. They will attend the traditional Christmas Day church service at St Mary Magdalene Church with the rest of the royal family. Later they will return home to Anmer Hall rather than Sandringham House.