A ceremony will take place at Cardigan Castle today, ahead of a major refurbishment of the site.
The £11m project will revamp the 900-year-old site into a facility for community and recreational use as well as for learning.
Campaigners still need to raise £150,000 to secure the project.
More top news
A campaign has launched for Welsh universities to alter its application forms to identify and give young carers more support.
Chris Coleman feels Ryan Giggs could benefit from his 28-year association with Manchester United coming to an end.
A report by the Wales Governance Centre has found Wales receives £245m more from the European Union than it pays in - around £79 per head.