Egeria relates being shown the site of Euphemia 's martyrdom in Chalcedon .
Egeria made a pilgrimage to the Holy Land about 381 - 384 and wrote an account of her travels .
Egeria , who made a pilgrimage to the Holy Land about 381 - 384 and wrote an account of her travels , relates being shown the site of Euphemia 's martyrdom in Chalcedon .