Onesiphoros and Porphyrios of Ephesus

Reading from the Synaxarion:

During the persecution of Diocletian and Maximian, about the year 290,
Saints Onesiphorus and Porphyries were betrayed as Christians to the
persecutors. After many torments through which they stood fast in confessing
their faith, they were bound by the feet to wild horses and dragged to
death.

Kontakion in the Second Tone
The martyric pair contested with great steadfastness and dashed to
the earth the boasting of the enemy and were made to shine with the
grace of the uncreated Trinity, and now with the angelic Hosts the
glorious Martyrs pray to God for us.