July 1 (Eastern Orthodox liturgics) - Wikipedia, the free encyclopedia
https://en.wikipedia.org/wiki/July_1_(Eastern_Orthodox_liturgics)
June 30 - Eastern Orthodox Church calendar - July 2. All fixed commemorations below are ... 132); Martyr Potitus at Naples (161); Martyrs Julius and Aaron, Protomartyrs of Wales, suffered in Caerleon-on-Usk under Diocletian (304); Saints ...
Latin Saints of the Orthodox Patriarchate of Rome - Orthodox England
orthodoxengland.org.uk/stdjul.htm
Julius and Aaron and Companions July 1 + c 305. According to tradition they are the Protomartyrs of Wales and suffered in Caerleon-on-Usk under Diocletian.