The Vatnsfirðings (or Vatnsfirðingar) were one of the most influential family
clans in twelfth century
Iceland during the period of the
Icelandic Commonwealth. Their domain of influence was the town of
Ísafjörður and its environs.
References
Árni Daníel Júlíusson, Jón Ólafur Ísberg, Helgi Skúli Kjartansson Íslenskur sögu atlas: 1. bindi: Frá öndverðu til 18. aldar Almenna bókafélagið, Reykjavík 1989