Apparition of the Holy Cross over Jerusalem: Commemorates the appearance on 7 May 351, Pentecost that year, of a luminous image of the Holy Cross in Jerusalem. It stretched from Mount Golgotha to the Mount of Olives (about two miles / three kilometers), was brighter than the sun, lasted several hours and was seen by the entire city. It led to many conversions and was reported in a letter attribued to Saint Cyril of Jerusalem.
—
St Abba
St Agostino Roscelli ( 1818–1902)
Bl Albert of Bergamo
Bl Antonio de Agramunt
St Augustine of Nicomedia
St Augustus of Nicomedia
St Cerenico of Spoleto
St Domitian of Huy
St Duje
St Flavia Domitilla of Terracina
St Flavius of Nicomedia
Bl Francesco Paleari
Bl Gisela of Ungarn
Bl Jan Eugeniusz Bajewski
St John of Beverley
St Juvenal of Benevento
St Maurelius of Voghenza-Ferrara
Bl Miqael of Ulompo
St Peter of Pavia
St Placid of Autun
St Quadratus of Herbipolis
St Quadratus of Nicomedia
St Rose Venerini (1656-1728)
About St Rose: https://anastpaul.wordpress.com/2018/05/07/saint-of-the-day-7-may-st-rose-venerini-1656-1728/
St Serenicus of Hyesmes
St Serenus of Hyesmes
Bl Villanus of Gubbio