Interestingly, as noted by the user Uxtalzon on the page for Iony Gredlong, the Shortnoble quests must have been moved from Iony to Maldeny. Iony Gredlong does not respond to hail nor any of the quest keywords.
Shortnoble Platemail Armguards - Quest
Shortnoble Platemail Boots - Quest
Shortnoble Platemail Bracer - Quest
Shortnoble Platemail Breastplate - Quest
Shortnoble Platemail Gauntlets - Quest
Shortnoble Platemail Greaves - Quest
Shortnoble Platemail Helm - Quest
Walking Staff of the Shortnoble - Quest
I also noticed there's a Glowing Shield of the Shortnoble, but I'm not sure how it's obtained.