The Prince of Wales and Duchess of Cornwall have visited the Senghenydd mining memorial on the fourth day of their Summer tour.
Prince Charles laid a wreath at the Welsh National Mining Memorial at the site.
439 miners and a rescuer died during an explosion at the Universal Colliery in Senghenydd in 1913.
The couple went on to open the newly re-located Aber Valley Heritage Museum before attending separate engagements in Usk.
More top news
A scheme which encourages tourists to book directly with businesses in order to avoid commission charges aims to boost tourism in Wales
John Atkinson has resigned - but insists that his decision is about workload and nothing to do with recent problems within the Welsh party.
Amelia's mum Sarah Jones described how her dad was "panicking" when he told her the baby was "not breathing".