The Knighthood and the Clogains

Hodor would be an example of another character that is potentially descended from from from dunk because of brand's wherewood vision regarding a knight as tall as hodor kissing a woman standing on her toes. Small poll and grand now the clogains being descendants of dunk in the tall but their connection is more thematic than logistical or there's no clues that their descendants other than their giantness are related to each other.