Among the exhibits on display are the 4m-long Great Charter Roll dating from 1372, which was viewed by Queen Elizabeth II during her historic visit to Ireland last year, and the 15th century cloth-of-gold vestments – Ireland’s finest late medieval treasures.
The new museum makes up one-third of the Waterford Museum of Treasures. The two other elements are Reginald's Tower, which covers Waterford’s Viking beginnings in 850 up to the Norman invasion, and the Bishop's Palace, which tells the city's story from 1700 to 1970.
The Medieval Museum will be open Monday to Saturday 9am to 6pm, and Sunday 11am to 5pm. Enquiries.
Here's a taster of what's within: