Astrid's Grandfather

"My grandfather said it was pirates."

- Astrid Hofferson in Breakneck Bog

Astrid's Grandfather is mentioned only once in the Dragons: Riders of Berk episode, "Breakneck Bog." His name is unknown. It is also unknown which side of Astrid's family he is from, her mother's side or her father's side.

Biography
At some point before the events of "Breakneck Bog", Astrid's Grandfather told her that the mysterious smoke that appeared near the island, later revealed to be the result of a pack of Smothering Smokebreaths, was due to pirates. Astrid later told this story to the other Dragon Riders and Trader Johann while attempting to figure out the identity of whatever was creating the fog, leading to Snotlout dismissing her grandfather's claim.