It took place in St John’s Square and coincided with similar ceremonies in towns and cities across the country following on from the national proclamation event, taking place at St James's Palace, London, on Saturday.
Here’s the best of our pictures from photographer Iain Lynn.
19. Royal proclamation in St John's Square
Crowds in Blackpool watch the Mayor of Blackpool read the royal proclamation in St John's Square Photo: Iain Lynn
20. Royal proclamation in St John's Square
Crowds in Blackpool watch the Mayor of Blackpool read the royal proclamation in St John's Square Photo: Iain Lynn