Saint Hermenegild or Ermengild ( †585) (Spanish: San Hermenegildo), was the son of king Liuvigild of the Visigothic Kingdom in the Iberian Peninsula and southern France who converted from Arianism to Chalcedonian Christianity. His death was later celebrated as martyrdom due to the influence of Pope Gregory I's Dialogues, in which he portrayed Hermenegild as a "Catholic martyr rebelling against the tyranny of an Arian father." He is venerated in Catholic Church and Eastern Orthodox Church and his Feast is commemorated on April 13.
Saint Modestus, Martyr († c. 304) was the educator of St. Vitus and martyr under Diocletian.
The 19 Martyrs of Gorkum (Dutch: Martelaren van Gorcum) were a group of 19 Dutch Catholic clerics, secular and religious, who were hanged on 9 July 1572 in the town of Brielle by militant Dutch Calvinists during the 16th-century religious wars. A shrub bearing 19 white flowers is said to have sprung up at the site of their martyrdom. Many miracles have since been attributed to the intercession of the Gorkum Martyrs, especially the curing of hernias. The beatification of the martyrs took place on 14 November 1675, and their canonization on 29 June 1867. For many years the place of their martyrdom in Brielle has been the scene of numerous pilgrimages and processions. The reliquary of their remains is now enshrined in the Church of Saint Nicholas, Brussels, Belgium, and their feast day is celebrated on 9 July.