Prince Edward and Sophie Countess of Wessex met schoolchildren outside the castle who were waving flags in their honour.
The Earl and Countess of Wessex were then taken on a tour of the castle, meeting the stone sculptor, and chatting with embroiderers doing embroidery work.
They visited the police museum in the castle and chatted with members of staff, police cadets and Lancashire Police and Crime Commissioner Andrew Snowden.
Before they left they enjoyed refreshments in the cafe at the castle.
9. Police crime museum at the castle
Prince Edward and Sophie Countess of Wessex chat with Lancashire Police and Crime Commissioner Andrew Snowden in the police museum at the castle. Picture by Dan Martino. Photo: Dan Martino
10. Inside Lancaster Castle
Prince Edward and Sophie Countess of Wessex chat with Lancashire Police and Crime Commissioner Andrew Snowden and members of museum staff inside the castle. Pictue by Dan Martino. Photo: Dan Martino
11. In the cafe at the castle
Sophie Countess of Wessex enjoys refreshments whilst chatting in the cafe at the castle. Picture by Dan Martino. Photo: Dan Martino
12. In the police museum
Sophie Countess of Wessex chats with police cadets and others in the police museum at the castle. Picture by Dan Martino. Photo: Dan Martino