A Key to the City - Dragon Age Guide - IGN

This side quest is a rather random one, since you won't actually learn of it until you've read all of the necessary codex entries around Orzammar.

Act Three - Baldur's Gate III Guide - IGN

Key to the City Dragon Age: Origins (DAO)

Magic Key Doors - Dragon Quest XI Guide - IGN

Vanaheim - Collectibles, Secrets, and Region Guides - God of War Ragnarok Guide - IGN

The Threat Remains - Dragon Age Inquisition Guide - IGN

Characters of Dragon Age: Inquisition - Wikipedia

Dragon Age: Dreadwolf - IGN

Justice for Kristoff - Dragon Age Guide - IGN

Key to the City, Dragon Age Wiki

Introduction: Vigil's Keep (I) - Dragon Age Guide - IGN

Dragon Age Inquisition Guide - IGN

Astarion: The Pale Elf - Baldur's Gate III Guide - IGN

Dragon Age: Origins [Walkthroughs] - IGN