John of Ávila was a Spanish priest, preacher, scholastic author, and religious mystic, who has been declared a saint and Doctor of the Church by the Catholic Church. He is called the "Apostle of Andalusia", for his extensive ministry in that region.
Portrait by El Greco (1580)
The basement of the family home of John of Ávila in Almodóvar del Campo, Ciudad Real, Spain
A relic of St. John of Ávila preserved in Almodóvar del Campo
Doctor of the Church, also referred to as Doctor of the Universal Church, is a title given by the Catholic Church to saints recognized as having made a significant contribution to theology or doctrine through their research, study, or writing.
Isidore of Seville, a seventh-century Doctor of the Church, depicted by Murillo (c. 1628) with a book, which is a common iconographical attribute for a doctor
Hildegard von Bingen was an eleventh-century Doctor of the Church, depicted here by Marshall with a book, the common iconographical attribute for a doctor.
The Four Great Doctors of the Western Church were often depicted in art, here by Pier Francesco Sacchi, c. 1516. From the left: Saint Augustine, Pope Gregory I, Saint Jerome, and Saint Ambrose, with their attributes.
Image: Gregorythegreat