▁Th àn h ▁District , ▁N gh ệ ▁An ▁Province , ▁Vietnam . ▁His ▁father ▁Ph an ▁ Đ ă ng ▁D ư ▁( 1 8 7 4 – 1 9 5 5 ) ▁and ▁his ▁mother ▁Tr ầ n ▁Th ị ▁Li ễ u ▁had ▁four ▁sons . ▁Three ▁of ▁them , ▁Ph an ▁ Đ ă ng ▁L ư u ▁( Ph án ▁T <0xE1> <0xBA> <0xB1> m ), ▁Ph an ▁ Đ ă ng ▁Tri ề u ▁( Ph án ▁Tri ề u ), ▁Ph an ▁ Đ ă ng ▁T à i ▁( Ph án ▁T à i ) ▁would ▁later ▁join ▁the ▁revolution ary ▁struggle ▁against ▁the ▁French ▁colonial ▁occupation . ▁ ▁During ▁the ▁decl ine ▁of ▁the ▁M ạ c ▁dynast y ▁at ▁the ▁end ▁of ▁the ▁ 1 6 th ▁century , ▁M ạ c ▁M ậ u ▁Gi ang ▁as ▁the ▁son ▁of ▁king ▁M ạ c ▁Ph ú c ▁N gu y ên , ▁went ▁to ▁N gh ệ ▁An ▁seeking ▁refuge . ▁To ▁avoid ▁political ▁per sec ution , ▁M ạ c ▁H uy ề n ▁N hai ▁as ▁the ▁son ▁of ▁M ạ c ▁M ậ u ▁Gi ang ▁marked ▁the ▁beginning ▁of ▁Ph an ▁( Đ ă ng ) ▁as ▁the ▁adjust ed ▁surname ▁of ▁this ▁line age ▁in ▁Y ên ▁Th àn h ▁District , ▁N gh ệ ▁An ▁province ; ▁" Đ ă ng " ▁being ▁a ▁con notation ▁to ▁the ▁founder ▁of ▁the ▁M ạ c ▁dynast y