Brentan
Defender of the Neverglades
Brentan is a knight whose loyalty to Swordhaven is deeply connected to the royal family. He knew Brittany from childhood and married her, but her death left him bitter enough to contest the throne. Recognizing that bitterness leads him to renounce his claim and travel to understand the people he had hoped to serve.
His eventual support for Victoria rests on affection as well as duty. He comes to regard her as family and calls her his sister after dying to save the Hero. Giving his remaining strength alongside other souls makes that care his final contribution to their struggle. When he reaches the Plane of Energy, Tanaris wishes him safe travels rather than keeping him there.
Sources
AQW Wiki: Lord Brentan NPC · Cold Thunder scene · Cold Thunder epilogue