Soldier saints

The military saints or warrior saints (also called soldier saints) of the Early Christian Church are Christian saints who were soldiers in the Roman Army during the persecution of Christians, especially the Diocletian persecution of AD 303–313.

Most were soldiers of the Empire who had become Christian and, after refusing to participate in rituals of loyalty to the Emperor (see Imperial cult), were subjected to corporal punishment including torture and martyrdom.

The military saints are characteristically depicted as soldiers in traditional Byzantine iconography from about the 10th century (Macedonian dynasty) and especially also in Slavic Christianity. While early icons show the saints in "classicizing" attire, icons from the 11th and especially the 12th centuries, painted in the new style of τύπων μιμήματα (imitating nature), are an important source for our knowledge of medieval Byzantine military equipment.

Veneration of these saints, most notably of Saint George, also entered Western tradition during the time of the Crusades.

The title of "champion of Christ" (athleta Christi) was originally used for these saints, but in the late medieval period also conferred on contemporary rulers by the Pope.

In Late Antiquity other Christian writers of hagiography, like Sulpicius Severus in his account of the heroic, military life of Martin of Tours, created a literary model that reflected the new spiritual, political, and social ideals of a post-Roman society. In a study of Anglo-Saxon soldier saints (Damon 2003), J.E. Damon has demonstrated the persistence of Sulpicius's literary model in the transformation of the pious, peaceful saints and willing martyrs of late antique hagiography to the Christian heroes of the early Middle Ages, who appealed to the newly converted societies led by professional warriors and who exemplified accommodation with and eventually active participation in holy wars that were considered just. A similar development in the cult of Saint Demetrius of Thessaloniki has been observed; although always described as a soldier, depictions of him were in civilian dress for centuries until around the turn of the millennium, after which he is nearly always shown fully armed.

...
Wikipedia