Of the total investment, £1m has been allocated to develop a new interpretative scheme — telling the fascinating stories of people who built and lived in the castle through the centuries.
Mae £1m o’r buddsoddiad wedi’i ddyrannu i ddatblygu cynllun dehongli newydd – sy’n adrodd hanesion difyr pobl a fu’n adeiladu ac yn byw yn y castell ar hyd y canrifoedd.