Nguyễn Phúc Miên Bửu
In 1843 , he was granted the title Tương An Công ( 襄安公 , "Duke of Tương An" ) by Emperor Thiệu Trị , and became the teacher of two princes , Nguyễn Phúc Hồng Bảo and Nguyễn Phúc Hồng Nhậm ( later Emperor Tự Đức ) . 
<triplet> Thiệu Trị <subj> Nguyễn Phúc Hồng Bảo <obj> child <triplet> Nguyễn Phúc Hồng Bảo <subj> Tự Đức <obj> sibling <triplet> Tự Đức <subj> Thiệu Trị <obj> father <subj> Nguyễn Phúc Hồng Bảo <obj> sibling