The window, with its partner at the opposite side of the apse, was inserted at the time of the building of the church, together with further coloured patterned glass in the nave and west gable.
According to the Builders Weekly Reporter the work was undertaken by Messrs Edmundson for the architect W.H. Spaull (information kindly provided by Julian Orbach).
Martin Crampin (ed.), Stained Glass in Wales Catalogue, University of Wales Centre for Advanced Welsh and Celtic Studies, Aberystwyth, 2011. https://stainedglass.delweddau.cymru/object/3759 (accessed 6 September 2025)