Fu

Like his granddaughter,  Fu is deeply loyal to  the young Xingese prince   Ling Yao.  He is quite skilled for his old age, as shown when he and Lan Fan fought the Elric Brothers at Rush Valley. He temporary  leaves Ling's side to help  Maria Ross  escape to Xing, and again when taking Lan Fan to get automail surgery. Fu and Lan Fan(with a new automail arm) later on return to the prince's side during the conflict with Pride and Gluttony, where their ability  to sense Qi helps them in their fight.   
 
In Chapter 98 of the manga Fu assists Ling/ Greed in his battle with Wrath/King Bradley.  In a final attempt to defeat the  homonculus,  Fu leaps at Bradley with four grenades strapped to his stomach.  Unfortunately  Wrath counters this by cutting off all four fuses with one swing of Fu's sword,  disabling all the grenades, and  slicing the old man deep across the abdomen doing so. While apologizing to Ling  for his failed attempt,  Buccaneer  makes a surprise attack  by thrusting Wrath's own sword through Fu's dieing body from behind  impaling the homonculus through the stomach. With his last dieing breath  Fu thanks Buccaneer for helping him injure King Bradley.