St Pope John I (c 470 – 526) – He was Pope from 13 August 523 to his death in 526. (Optional Memorial)
Biography:
https://anastpaul.wordpress.com/2017/05/18/saint-of-the-day-18-may-st-pope-john-i/
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Bl Burchard of Beinwil
St Dioscorus of Kynopolis
St Elgiva of Shaftesbury
St Eric of Sweden (c1120-1160)
St Felix of Cantalice OFM Cap (1515-1587)
About St Felix:
https://anastpaul.com/2018/05/18/saint-of-the-day-18-may-st-felix-of-cantalice-o-f-m-cap-1515-1587/
St Felix of Spoleto
St Feredarius of Iona
Bl Jan Oprzadek
St Merililaun
St Ortasio of Alexandria
St Potamon of Heraclea
St Serapione of Alexandria
Bl Stanislaw Kubski
St Venantius of Camerino (Died c 250) Martyr
Bl William of Toulouse OSA (c 1297-1369)
His life:
https://anastpaul.com/2019/05/18/saint-of-the-day-blessed-william-of-toulouse-osa-c-1297-1369/
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Martyrs of Ancyra – 8 saints: Seven nuns martyred in the persecutions of Diocletian and the innkeeper who was executed for giving them a Christian burial: Alexandria, Claudia, Euphrasia, Julitta, Matrona, Phaina, Thecusa and Theodatus. c.304 in Ancyra, Galatia (in modern Turkey)