Trương Văn Hiến
The Tây Sơn brothers , Nguyễn Nhạc , Nguyễn Lữ and Nguyễn Huệ , were his students . 
<triplet> Nguyễn Nhạc <subj> Nguyễn Lữ <obj> sibling <subj> Nguyễn Huệ <obj> sibling <triplet> Nguyễn Lữ <subj> Nguyễn Nhạc <obj> sibling <subj> Nguyễn Huệ <obj> sibling <triplet> Nguyễn Huệ <subj> Nguyễn Nhạc <obj> sibling <subj> Nguyễn Lữ <obj> sibling