Glaurung - the Father of Dragons by WretchedSpawn2012 on DeviantArt

Glaurung: the first dragon of Middle-earth – mogsymakes

The Inklings: Glaurung -- The Father of Dragons

Glaurung and Nienor - Every Day Original

The Slaying of Glaurung by Darrell K Sweet (from Tolkien's Silmarillion), in Scruffy McFleabag's Tolkien Art Comic Art Gallery Room

Angband Strikes Back; or, The Battle of Unnumbered Tears

The Lord of the Rings Magyarország - Glaurung

Glaurung and the Dwarves of Belegost by Lynton, 2D

Glaurung » Jef Murray Studios

Glaurung

A painting of the death of Glaurung, the first dragon of Morgoth, by artist Elena Kukanova : r/lotr