I played DA2 before, and I have something to ask: whats the Chantry exactly? I know they controlling the Templars, but their
statues and their dialogues looks like a somekind religious to me
Well they are a religion. They are a monotheistic religion that believes in a creator god called the Maker. They believe that Andraste was the prophet of the Maker, his bride, and was burnt at the stake in the Tevinter captial, her mortal husband Maferath betrayed her to Archon Hessarian. Upon her death she is said to have been raised up and became a divine figure; Hessarian is often said to be the first convert btw.
she was raised to his right side and became divine herself. The religious organzation itself is structured similarly to catholicisim. There holy book is refered to as The Chant of Light that was said to have been preached during Andraste's day. In the Andrastian chantry*(there is another chantry in Tevinter) they are lead by the divine from Val Royeaux, she is elected by grand clerics. The interesting thing to me is that most of the ranks are female, though men can become brothers.
The chantry is widespread in thedas. The kingdoms of Nevarra, Orlais, Fereldan, Anderfels, Rivian and the city state region of the Free Marches all follow the Chantry's faith, even if some nations have their own varations on things, notably Nevarra and Rivian have some different views on a few things.
There are four principals of the andrastian faith.
I. Magic is a corrupting influence in the world.
II. Humankind's sin of pride destroyed the Golden City and created the darkspawn, terrible embodiments of that sin.
III. Andraste was the bride of the Maker, a prophet and martyr whose ultimate sacrifice must be remembered and honored.
IV. Humankind has sinned and must seek penance to earn the Maker's forgiveness. When all people unite to praise the Maker, he will return to the world and make it a paradise.
I do hope this helps you out
feel free to ask any other questions you may have.