Catherine, Duchess Of Cambridge Attends Lunch In Support Of The Anna Freud Centre on May 4, 2016 in London, England

Catherine, Duchess of Cambridge arrives at the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess of Cambridge arrives at the Anna Freud Centre on May 4, 2016 in London, England. 

 Catherine, Duchess of Cambridge arrives at the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess of Cambridge arrives at the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Catherine, Duchess Of Cambridge attends a Lunch In Support of the Anna Freud Centre on May 4, 2016 in London, England. 

Britain's Catherine, Duchess of Cambridge, smiles as she speaks with guests during a reception at Spencer House in London on May 4, 2016. The Duchess of Cambridge undertook her first engagement as Patron of the Anna Freud Centre by attending a lunch reception supporting the development of a new centre of excellence for children's mental health.

Britain's Catherine, Duchess of Cambridge speaks with guests during a reception at Spencer House in London on May 4, 2016.

Catherine, Duchess of Cambridge laughs as she speaks with guests during a reception in support of The Anna Freud Centre on May 4, 2016 at Spencer House in London, England. 

Catherine, Duchess of Cambridge speaks with guests during a reception in support of The Anna Freud Centre on May 4, 2016 at Spencer House in London, England. The Duchess undertook her first engagement as Patron of the Anna Freud Centre by attending a lunch reception supporting the development of a new centre of excellence for children's mental health.

Catherine, Duchess of Cambridge arrives at the Anna Freud Centre lunch reception at Spencer House in London on May 4, 2016.

Catherine, Duchess of Cambridge has a continued interest in drawing attention to child mental health issues, the importance of early intervention, and working with the whole family to provide children with in-school mental health services

Catherine, Duchess of Cambridge wore an Roksanda dress for her first engagement as newly-announced patron of the Anna Freud Centre at a lunch reception on Wednesday, supporting the development of a new centre of excellence for children's mental health.

Busy day for Catherine, Duchess of Cambridge after her brief visit to Hampton Court, The Duchess undertook her first engagement as newly-announced patron of the Anna Freud Centre

Catherine, Duchess of Cambridge attended a lunch reception supporting the development of a new centre of excellence for children's mental health

Catherine, Duchess of Cambridge dazzles in a dove grey Roksanda dress as she attends a lunch reception in London.

Catherine, Duchess of Cambridge dazzled in Roksanda dress that she has worn it on numerous occasions over the last few years before, the flattering asymmetric neckline, zip back and dove grey shade for a lunch reception in London on Wednesday, 4 May 2016.

Catherine, Duchess of Cambridge departs the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess of Cambridge has been a patron of the Anna Freud Centre since February, and today marked her first official engagement for the organization.

Catherine, Duchess of Cambridge departs after visiting the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess of Cambridge makes a stylish exit as she leaves the Anna Freud Centre lunch in London's Spencer House

It has been a busy day for Catherine, Duchess of Cambridge, who started this morning with a visit to Hampton Court Palace before heading to the Anna Freud Centre. She will later attend a new Vogue exhibition.

Catherine, Duchess of Cambridge departs after visiting the Anna Freud Centre on May 4, 2016 in London, England

Catherine, Duchess Of Cambridge attends a lunch in support of the Anna Freud Centre at Spencer House on May 04, 2016 in London, England.

The Duchess greets guests as she arrives at the Anna Freud centre. Catherine, Duchess of Cambridge has a continued interest in drawing attention to child mental health issues and early intervention

Catherine, Duchess of Cambridge is keen to highlight the importance of working with the whole family to provide children with in-school mental health services

Catherine, Duchess of Cambridge departs the Anna Freud Centre on May 4, 2016 in London, England.

Catherine, Duchess of Cambridge pictured leaving Spencer House, previously visited the Anna Freud Centre's Family School to gain an insight into the provision of alternative education for children with serious emotional and behavioral issues and their families

Catherine, Duchess of Cambridge departs after visiting the Anna Freud Centre on May 4, 2016 in London, England

Britain's Catherine, Duchess of Cambridge, leaves after attending a reception at Spencer House in London on May 4, 2016.

 Catherine, Duchess of Cambridge attends a lunch in aid of The Anna Freud Centre on May 4, 2016 in London, England.