Ignatius of Antioch (died c. 108/140 AD) was an early Christian writer and bishop of Antioch. While en route to Rome, where he met his martyrdom, Ignatius wrote a series of letters. This correspondence now forms a central part of a later collection of works known to be authored by the Apostolic Fathers. He is considered to be one of the three most important of these, together with Clement of Rome and Polycarp. His letters also serve as an example of early Christian theology. Important topics they address include ecclesiology, the sacraments, and the role of bishops.

Ignatius himself wrote that he would be thrown to the beasts, and in the fourth century Eusebius reports tradition that this came to pass, which is then repeated by Jerome who is the first to explicitly mention "lions."  John Chrysostom is the first to allude to the Colosseum as the place of Ignatius' martyrdom.

Source: https://en.wikipedia.org/wiki/Ignatius_of_Antioch

St. Ignatius of Antioch - c. 107 A.D. Epistle to the Ephesians St. Ignatius of Antioch - c. 107 A.D. Epistle to the Magnesians St. Ignatius of Antioch - c. 107 A.D. Epistle to the Trallians St. Ignatius of Antioch - c. 107 A.D. Epistle to the Romans St. Ignatius of Antioch - c. 107 A.D. Epistle to the Philadelphians St. Ignatius of Antioch - c. 107 A.D. Epistle to the Smyrnaeans St. Ignatius of Antioch - c. 107 A.D. Epistle to Polycarp 

Philo and Agathopus  -  c. 120 A.D.     The Martyrdom of Ignatius