Here is the full list of all 14 Knights of Valour trophies - there are 11 bronze, 2 silver and 1 gold.
All stages in "Prosperity Under Heaven" 100% explored
Defeat Xiang Yu for the first time
All stages in "Dark Calamity" 100% explored
All stages in "Terrible Demon" 100% explored
Stage Rank S in Stage 1～Stage 5 of any Difficulty
All stages in "Marsh Battle" 100% explored
All stages in "Sishui Supremacy" 100% explored
Defeat Dong Zhuo for the first time
Defeat Lu Bu for the first time
Defeat Hua Xiong for the first time
Defeat Zhang Jue for the first time
Win the first Multiplayer game
100 Combos in battle
Defeat Zhang Bao for the first time