Today is the feast of the great Celtic saint, Illtyd !
His troparia is:-
Troparion of St Illtyd Tone 6
O wise Illtyd, thou wast noble by birth and noble in mind/
and didst train many saints in the way of holiness./
Pray to Christ our God to raise up saints in our days/
to His glory and for our salvation.
The life of St Illtyd Feast 6/19 November, is here .
A really nice web site depicting a visit to Llantwit Major is here and is well worth a browse.