Archive: Queen's Aberfan disaster visit
Few villages with a population of just a few thousand people would have received four visits from the Queen during her reign.
But few places hold such a special place in her heart as the small former mining community of Aberfan, according to people who have met her there.
In October 1966, 116 children and 28 adults died when a colliery spoil tip collapsed. Eight days later, she made the first of four visits to the the village.
As the Queen celebrates her 90th birthday, BBC Wales takes a look back at that day.