Orshogoth Lagonath Vasonu was the sire of Lagonathnu Orshogoth. He was the first of the Orshogoth bloodline to be affected by The Cataclysm  . Before The Cataclysm, Urnati dragons of all types rarely grew beyond 10-15 ft. long.

But The Cataclysm changed the DNA of everything exposed. Because the Orshogoth bloodline was that of Silver Dragons, they were accustomed to the cold and made it through the 30-Year-Winter with little trouble, save for finding food. But the mutated DNA caused subsequent generations of all dragons to grow much larger at maturity, up to 75′ in length. Some actually developed new abilities, such as telepathic connection with others of their bloodline.