Dukes of Frisia

thumb|alt=Refer to caption|right|Ubba's name as it appears on folio 48verso|v of British Library Harley 2278 (Lives of Saints Edmund and Fremund): "''''"

King of the Frisians

Danish viking leader

Danish Viking ruler

duke of the Frisians

thumb|upright|"King Aldgisl" as depicted in a Dutch chronicle from 1662 Aldegisel (also spelled Aldegisl, Aldgillis, Aldgisl, Aldgils or Eadgils, ) was the ruler of Frisia (as king or duke) in the late seventh century contemporarily with Dagobert II and a very obscure figure. All that is known of him is in relation to the famous saint that he harboured and protected, Wilfrid, but he is the first historically verifiable ruler of the Frisians.

Audulf () was a Frisian active , just after the Great Migration Period. He is not mentioned by any historians of the era but several gold coins have been found inscribed with his name, leading to debate as to whether he was a petty king in Frisiathe former lands of the Frisii on the coastline of the northern Netherlands and northwestern Germanyor simply a Frisian moneyer, probably in the employ of the Merovingian Franks.