May 24 - Eastern Orthodox Church calendar - May 26
Finding of the Precious Head of Saint John the Baptist (Menologion of Basil II)
Icon of the Third Finding of the Head of John the Forerunner (Konetz, 19th century, Russia)
Relics of Saint Dionysius, Bishop of Milan (Cathedral of Milan).
St. Stained glass window of St. Aldhelm, installed in St Aldhelm's Catholic Church, Malmesbury.
May 28 - Eastern Orthodox Church calendar - May 30
Icon of Pope Alexander of Alexandria.
St. Theodosia of Constantinople.
Church of St. Maximin, in Trier, Germany.
The monastery of St. John de Atares (San Juan de la Peña (of the rock)) is located at the south-west of Jaca, in Huesca, Spain. It was one of the most important monasteries in Aragon in the Middle Ages.