Chevalier armor set

Description
The Chevalier set has the same model of the armor of King Cailan Theirin. The quality of the Chevalier armor pieces depends on the level of the player.

Acquisition
Pieces of the armor can be found in Marjolaine's chest during Leliana's personal quest in Denerim but the catch is that the contents of the chest are set the first time you enter her home. If the armor is not in the chest reload your save file from before you entered.

Shaevra in the back room of The Pearl also has a chance to drop the Chevalier pieces. (I recommend confront her before go to Marjolaine, because Marjolaine's chest has very good chance to find one of missing piece)

Ser Perth can also drop pieces of the Chevalier set, and can be killed by friendly fire or he may be dead by the end of the battle in Redcliffe.

The gloves also can be bought off of Faryn in the Frostback Mountains.

The gloves are also random loot from Adventuring Warrior in the quest Careless Accusations.

Equipping Chevalier armor pieces you already posses may increase the chance of the missing armor piece from showing in the chest or on Shaervan's body.

Armor Set Bonus is actually : +3 Constitution -3 Willpower. At least on XBox 360