A person who is killed for his beliefs.
St. George the Great Martyr Orthodox Church was created in 1935.
Martyr was Justin Martyr's last name. He was not a philosopher but one of the early Church Fathers
If they died for the faith
Valentine died the death of a martyr - automatic sainthood in the early Church.
Stephen was stoned during the earliest years of the Church and was the first martyr. He probably died about the year AD34.
Anyone who dies for their religious beliefs is classed as a martyr, not just in the Christian Church but in many other religions as well.
The first Deacon who also was the first Martyr of the the Catholic Church is Saint Stephen.
She was neither. She died of natural causes
Louis P. Giorgi has written: 'The windows of the Church of Saint Justin Martyr' -- subject(s): Church of Saint Justin Martyr (Lower Merion, Pa.), Glass painting and staining, History
Justin Martyr, though not necessarily a Church Father, but an early writer.
Please be more specific in your question. There were many early church fathers and Christian martyrs.
Saint Valentine was a martyr, he was beheaded. In the Catholic Church, the color red is is used for the vestments and altar cloths on the feast day of a martyr.