Are you referring to the St. Irene who cared for St. Sebastian after he had been shot with numerous arrows and nursed him back to health? Her feast day is March 30.
There is no St. Irene with a feast day of June 28. However, Saint Irenaeus of Lyons has his feast that day.
Simon shares October 26 as a feast day with St. Jude.
St. Francis of Assisi's feast day is on October 4. The feast day of St. Francis is on October 4.
March 7 is the feast day of St. Perpetua.
November 3 is the feast day of St. Hubert.
January 2 is St. Basil's feast day.
The feast day of St. Brice is November 13.
St. Lukes' feast day is on October 18
St. Monica's Feast Day is August 27.
St. Ava's feast day is April 29.
October 13th is the feast day of St. Edward the Confessor.
St. Linda (St. Ermelinda)'s feast day is October 29.