gptkb:Diocese_of_Vinh
Diocese of Bac Ninh
Diocese of Bui Chu
Diocese of Hai Phong
Diocese of Hung Hoa
Diocese of Lang Son and Cao Bang
Diocese of Phat Diem
Diocese of Thai Binh
Diocese of Thanh Hoa
gptkb:Hoa_Binh gptkb:Hanoi gptkb:Ha_Nam gptkb:Hung_Yen
Nam Dinh
part of Bac Giang
part of Bac Kan
part of Cao Bang
part of Dien Bien
part of Lai Chau
part of Lang Son
part of Lao Cai
part of Ninh Binh
part of Phu Tho
part of Son La
part of Thai Nguyen
part of Tuyen Quang
part of Vinh Phuc
part of Yen Bai