It Belongs in a Mausoleum!

For pictures / more clear locations, images and markers that show them
https://imgur.com/a/NXnf614

First trinket - first room of the dungeon - beneath the baskets.
Second trinket - at the end of the platform just before first boss room.
Third trinket - this requires the patrolling mob that does a huge AoE pushback for you to get up there. Might be other ways around it (like DH), but we didn't test.
Fourth trinket - just before last boss, on up the right pillar. You get up by wall-jumping against the pillar, finding the correct gaps. You can click the trinket while jumping, so you don't have to get all the way as long as you can click during jump.

Hint for the 3rd one when the Brute is missing you all the time: Sit down while he casts, when you sit you can't be missed.

i made a video about how to get third trinket without any movement skills:
https://www.youtube.com/watch?v=OSpzuWezqCk
PS. This is personal achievement.