Riou "Tao"
About
After the Highland Army massacred the Unicorn Brigade and blamed it on Jowston's Army, he escaped and joined Viktor's mercenaries. Eventually, he ended up becoming the leader of the Dunan Unification movement, and led them to victory. After the Dunan Unification War, he disappeared along with the former Highland King, Jowy Blight (Atreides) and his sister, Nanami. He wears a circlet and shoulder pads that were given to him as a young boy by Genkaku, and fights with tonfar.
He doesn't have an official name in the original game. His name is Riou in 2000 light novel adaptation and Tao in the 2009 manga adaptation.
(Source: Suikosource)