The first mention of the castle was by Giraldus Cambrensis as one of the places he visited in 1188 with Archbishop Baldwin.

At the time, the castle was only an earth and timber construction which later became stone.

It has gone through several wars and battles over the years, and the skeleton of the inner ward and curtain walls still remain within the towers.

The project will enhance its green spaces and biodiversity through a medicinal garden, micro-meadows and pollinator-friendly planting. It will also include a dedicated school programme and volunteering opportunities for the community.

A spokesperson from Pembrokeshire council said: “The attraction will not only bring its remarkable history, but will also act as a catalyst for the regeneration of Haverfordwest.”

The council estimates around 63,000 people will visit the town in the project’s first year.