1. The robe of Adanos - it's in the temple of Al. Shedim
2. The ring of Adanos - it's in Nordmar. The undead warrior Akasha has it.
3. The ring of Adanos - the demon from Gotha has it. You have to kill the demon.
4. The amulet of Adanos -Vak the leader of the Orcs from Trelis has it. Pay him or kill him to get the amulet.
5. The crown of Adanos - it's in the Mora Sul Temple.
It's described precisely in the guide how to get all of those items.