6th century. A Welsh saint whose memory is perpetuated by the name of
the island of Ynys-Seiriol
(Benedictines).
Troparion of St Seiriol
Tone 4
We hymn thee, O Father Seiriol,
for thou didst turn the Welsh
wilderness into a fertile vineyard for the Lord.
By this our intercession, O Saint,
we implore thee to pray to Christ our God
that our labours may be blessed and our souls may be saved.