Married layman in the apostolic vicariate of Central Tonkin (in modern Vietnam). Fisherman by trade. During the persecutions of emperor Tu Duc, he was ordered to stomp on a cross to show his contempt for Christianity; he refused. Martyr.
- “Saint Phêrô Dung“. CatholicSaints.Info. 1 June 2015. Web. 22 October 2016. <>