A king Reborn Quest (Divinity Original Sin 2)
At the second level of the magister's vault (beneath the barracks), you will find a book near the table, telling you that Dallis resurrected Braccus Rex.
To know how to reach here check the video out for the Quest 'Last Stand Of Magisters': https://youtu.be/Z3JlUe1zF1w
Return to the Hall of Echoes and confront Tarquin. He will admit that he indeed helped Dallis bring Braccus Rex back to life, but remark that he was forced to do so.
If you helped Tarquin earlier by helping him restore the pieces of Anathema back in Act II, he will give you the Anathema (best two-handed weapon in the game) as compensation to help you defeat Braccus Rex. If you didn't help him back in Act II, he will remark bitterly that he could have helped you stop Braccus had you assisted him back then, but since you did not do so, he has nothing left to offer you.
Arx Quests Playlist: https://www.youtube.com/playlist?list=PL_l3PEDN9zYhNSEWae6IUexF1FkaOCcCj
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