Adwen or Adwenna is purported to have been a 5th-century Christian virgin and saint.
[1] According to historian Nicholas Orme, Adwen was identified in the original tradition as a brother of Nectan of Hartland, but subsequently misclassified by Charles Henderson in the 18th century as female.
[2] Adwen is therefore recorded as a daughter of Brychan, king of Brycheiniog in south Wales, in Doble's Life of Saint Nectan[3] and in Robert Hunt's collection of Cornish legends.
[4] These sources associate her with the establishment of the parish of Advent in Cornwall.
In Cornwall Adwen was traditionally the patron saint of sweethearts.