Isidorus, bishop of Cordova (Cordubensis), who is said to have flourished about the end of the fourth century, but whose very existence has been called in question by Nicolas Antonio in the Bibliotheca Hispana vetus.
William Smith. A Dictionary of Greek and Roman biography and mythology. London. John Murray: printed by Spottiswoode and Co., New-Street Square and Parliament Street. In the article on Soranus, we find: "at this present time (1848)" and this date seems to reflect the dates of works cited. 1873 - probably the printing date.