The Prince of Wales and the Duchess of Cornwall are to spend Wednesday in Cambridge.

Prince Charles - a graduate of Cambridge’s Trinity College - and his wife Camilla have separate engagements in the city.

The Prince will meet head teachers at the Prince’s Teaching Institute’s (PTI’s) schools leadership day at Madingley Hall.

He is president of the PTI - which aims to inspire teachers in their subject expertise and give them confidence to introduce more challenging work to their pupils.

The Duchess will visit the Cambridge Wellcome Trust Clinical Research Facility on the Addenbrooke’s Hospital site to learn about the work of the Juvenile Diabetes Research Foundation (JDRF) before visiting the Emmaus Cambridge community in Landbeach.

In the year of the Queen’s diamond jubilee, the royal visit is expected to pull in the crowds.

Karen Addington, chief executive of JDRF, said: “We are delighted HRH Duchess of Cornwall is visiting the clinical trials centre in Cambridge and has shown an interest in children with type 1 diabetes.

“Her visit will help to highlight how this challenging and serious autoimmune condition, which is unfortunately misunderstood, affects thousands of children and adults across the UK.”

Cambridge academic Dr Roman Hovorka said he was “delighted” the Duchess had decided to visit the biomedical campus.

He said: “It is great to receive such high-profile interest in our research work here at Cambridge as our teams pursue potentially life-changing, innovative approaches to the management and treatment of type 1 diabetes.”

The Duchess, a patron of the Emmaus homeless charity, will also visit former homeless people living in Landbeach.

Providing a home and work to street people to help them move on from homelessness, the ‘companions’ - as residents are known - work full time collecting and reselling furniture.

In return for giving up unemployment benefits and agreeing to not bring drink or drugs into the community, they are given food and shelter and a small weekly allowance.

Simon Grainge, community director of Emmaus Cambridge, said: “We are very honoured that Her Royal Highness is coming to visit us at Emmaus Cambridge, which is where Emmaus began in the UK.

“We hope her support will encourage people to visit our Landbeach warehouse just off the A10.”