Diallosβs Quest is one of the early Elden Ring quests that can be tricky to follow, especially for players not familiar with the Dark Souls games. Itβs challenging to keep track of all the quests with an almost overwhelming number of NPCs to meet and interact with.
Starting with the moment you meet Diallos, hereβs how you can finish his Quest without a hitch in the game developed by FromSoftware for PC, Xbox, and PlayStation.
Where To Find Diallos
Diallos can be found for the first time when you visit the Roundtable Hold.

Speak with him, and heβll tell you about Lanya, his missing companion. Heβll ask you to keep an eye out for her while youβre out and about.
Where To Find Diallos in Liurnia of the Lakes
Diallos can be found near the Academy Gate Town Site of Grace as you progress towards the Academy of Raya Lucaria in Liurnia of the Lakes.

Head north from the Site of Grace to find him standing over Lanyaβs body, mourning her. Speak with him, then return to the Roundtable Hold, where he will be waiting for you.

Exhaust his dialogue here once more to get him to move to Volcano Manor.
Where To Find Diallos in Volcano Manor
After you join the Volcano Manor, you can find Diallos in the drawing-room of the Volcano Manor, where youβll pick up the letters for the Tanith Questline assassinations.

He will be to Bernhalβs right. Exhaust his dialogue and complete two assassination contracts. After completing the assassinations, you will find him later in the same spot, looking defeated. Once you exhaust his dialogue, he will leave Volcano Manor and relocate to Jarburg.
Where To Find Diallos in Jarburg
Diallosβ Quest concludes with a trip to Jarburg in Liurnia of the Lakes.

Fast travel to the Gate Town Bridge Site of Grace, then head east to the cliff just south of the Carian Study Hall. Once you get close to the cliffβs edge, you will find tombstones that you can drop down on by using your horse, Torrent. Make your way down, activate the site of grace, and look for the Jar-Bairn, a small pot.

You must speak with Jar-Bairn enough times to progress his questline until he mentions that βa new Potentateβs coming to the villageβ. First, youβll be asked if youβre the new Potentate, so say yes.
Exhaust the dialogue, then reload the areaβ either fast travel or rest at the Site of Grace nearby. Do this as many times as necessary until you hear about the new Potentate. Look for Diallos inside one of the huts and speak with him, exhausting his dialogue once more.

Rest or fast travel at the nearby site of grace, exhaust the new dialogues with Jar-Bairn and Diallos, then pass the time at the Site of Grace, so a whole night has passed. You will find him in the center of the village, lying on the ground after defending the jars, and he will ask if he was successful in defending them.

When prompted, select βYou defended them,β then speak to Jar Bairn again before reloading the area. After reloading the area, Jar-Bairn will move over to him and βdevourβ his corpse for power.
Exhaust the dialogue with Jair-Bairn and reload the area one more time. Where he was last encountered, you can loot the Hoslowβs Petal Whip, Diallosβ Mask, and a Numenβs Rune.Β

Thatβs everything you need to know in order to complete the Elden Ring Diallos Quest. If you have any questions, post them in the comments section below.