The Bloodborne Granny died to the left of the church lantern.
In the game, the weapons I choose for melee combat are ax + electric hammer, and long-range + iron cannon. The ax is more commonly used because it has a long distance, is hard and long, and can charge R2 for two consecutive hits. The thunder hammer is also very fierce after being strengthened, but it is not as easy to attack as the axe.
Dungeon Guide
On the bridge before fighting the beast, there is a gap on the right side after the two wolves, you can jump down (you can also reach it behind the wooden box on the left side of the Fountain Square). Go down this road and you will see a lighted window and a light at the door (any door with a light has an NPC you can talk to, the same below). The little NPC girl will give you a music box and ask you to find your parents ( Spoiler alert: the priest is her father).
When hitting the priest, you can use this music box to stun him for a long time, and then charge up to slash. If there is no music box, go around the tombstone card perspective and try to shoot back the boss instead of being shot back by the boss. Just pay attention to hiding in the third stage.