He was the first cardinal to hail from Vietnam, and was also one of the cardinal electors who participated in the conclaves of August and October 1978, which selected Popes John Paul I and John Paul II respectively.
Trịnh Khải | Như Quỳnh | Trịnh lords | Lê Minh Khuê | Trịnh Khả | Trịnh Bồng | Madame Nhu | Trinh Xuan Thuan | Trinh T. Minh-ha | Trịnh Khai | Trinh Cong Son | Trịnh Cán | Coralie Trinh Thi |