The Order of St John dates back to 11th century Jerusalem when monks began caring for sick and injured pilgrims who had made the long journey to the Holy Land. Known as Hospitallers, they also took on the role of defending those in their care as fighting in the area intensified during the Crusades.

Driven from Jerusalem in 1187, the Order moved between various countries before establishing its headquarters in Malta during the 16th century, where it remained until Napoleon forced it out in 1798. By this time it had grown greatly in wealth and influence across Europe, whilst still serving its original aim of caring for the sick and poor from all backgrounds.

Following a period of enforced inactivity in Britain during the reign of Henry VIII, the Order of St John was officially recognised by Queen Victoria in 1888 for its voluntary and charitable work. The Priory of Wales was established in 1918 to support the work of the first aiders who had been operating in Wales since the 1890’s.