There is a building at the junction of the Waterford quays that has stood in some form since 1003 AD. It has been a fortress, a mint, a prison, a military magazine and a municipal museum. Its walls are up to three metres thick. It is the only monument in Ireland to bear the name of a Viking. This is Reginald’s Tower, and it is one of the most quietly extraordinary buildings in the country.
A Thousand Years of History
The tower is named after Ragnall mac Ímair, a Viking leader who held Waterford in the early 10th century — though the current structure dates to around 1185, rebuilt on the original Viking foundations. Its circular plan, uncommon in Irish architecture, reflects its Norse origins. Over the centuries it served as a royal mint (coins were struck here under several medieval kings), a prison (holding both common criminals and political captives), and a stronghold that withstood multiple sieges. When Strongbow’s Anglo-Norman forces took Waterford in 1170, they married their leaders here — the marriage of Strongbow and Aoife of Leinster, depicted in the famous Daniel Maclise painting, took place within these walls.
Inside the Tower
The museum inside is compact but beautifully curated. The standout exhibit is a collection of original Viking artefacts excavated from the surrounding streets during the 1980s digs — including a spectacular 10th-century ring pin of a type worn by Viking men as a cloak fastener, gaming pieces carved from bone, and iron tools that were still sharp enough to cut when they were unearthed. There is also a replica Viking longship prow and a short film setting the founding of the city in context.
The staircase inside the tower is original — steep, narrow, worn smooth by a thousand years of feet. Each floor is a different era of the building’s history. The view from the top across the River Suir and the quays is worth every step of the climb.
Practical Information
Reginald’s Tower is located at the bottom of the Viking Triangle, directly on the quays. It is one of the five Waterford Treasures sites and is included in the combined ticket. Individually, admission is very reasonable. Allow 45 minutes to an hour. Note that the spiral staircase is steep and not suitable for pushchairs or anyone with significant mobility difficulties. The tower is open daily, with reduced hours in winter.
One thing worth knowing: the exterior of the tower is as interesting as the interior. Walk around the base and look at the masonry — you can see the different phases of construction in the stonework, with Viking-era courses at the base and later medieval rebuilding above. It is a building you can read like a page of history.
Reginald’s Tower features in our guide to the Top 15 Things to Do in Waterford.