Tyranny of the Dragon Queen
Sildar Hallwinter is a kind older man. The Hallwinter name is one attached to former Waterdeep nobility, though with the rampant sale of titles, it is unknown if Sildar still possesses any noble claim. He is a stated and claimed member of the Lord’s Alliance, and an avowed friend of Gundren Rockseeker
He knows Iarno Albrek, the traitor better known as Glasstaff, and his uniform strongly implies he served, in battle, with the griffon calvary of Waterdeep. From talking with him, anyone can see that he’s a bit melancholy, and has plans that are perhaps best described as “not well thought out”.