wichita.edu
…VIRGIN MARY Wherein, the origin, antiquity, and foundation of the Church of the Blessed Virgin, formerly called Vultuilla, now known as Monterella, in the Polanian Mountains, is described. This church is located in the very place where Placidus, formerly the chief military commander under Emperor Trajan and later known as St. Eustachius, saw Christ appear…
https://www.wichita.edu/academics/fairmount_las/geology/wparcell/Kircher/HistoriaEustachio/historia1.php