Royalty in my family - The House of Wessex

Gildas mentions Constantine in chapters 28 and 29 of his 6th-century work De Excidio et Conquestu Britanniae. He is one of five Brythonic kings whom the author rebukes and compares to Biblical beasts. Constantine is called the "tyrannical whelp of the unclean lioness of Damnonia", a reference to books of Daniel and the Revelation, and apparently also a slur directed at his mother. This Damnonia is generally associated with the kingdom of Dumnonia, a Brythonic kingdom in Southwestern Britain. However, it is possible that Gildas was instead referring to the territory of the Damnonii in what was later known as the Hen Ogledd or "Old North".
Gildas says that despite swearing an oath against deceit and tyranny, Constantine disguised himself in an abbot's robes and attacked two "royal youths" praying before a church altar, killing them and their companions. Gildas is clear that Constantine's sins were manifold even before this, as he had committed "many adulteries" after casting off his lawfully wedded wife. Gildas encourages Constantine, whom he knows to still be alive at the time, to repent his sins lest he be damned.

Ket and Wig appear in the Gesta Danorum as the sons of Frowin, the governor of Schleswig. Wig also appears in the Anglo-Saxon Chronicle as the son of Freawine (Frowin) and father of Gewis, eponymous ancestor of the kingdom of Wessex and their kings, but this is thought to be a late manipulation, inserting these heroes into a pedigree borrowed from a rival royal house, in which the Bernician eponym Bernic was replaced by the Wessex Gewis. Their father Frowin/Freawine was challenged to combat by the Swedish king Athisl, and killed. King Wermund, who liked their father, subsequently raised Ket and Wig as his own. They later avenged their father, but they fought against Athisl two against one, a national disgrace that was redeemed by their brother-in-law, King Wermund's son Offa, when he killed two Saxons at the same time, in "single combat". This event is referred to in Widsith as a duel against Myrgings.

Freawine, Frowin or Frowinus figures as a governor of Schleswig in Gesta Danorum and in the Anglo-Saxon Chronicle as an ancestor of the kings of Wessex, but the latter source only tells that he was the son of Frithugar and the father of Wig. In the Gesta Danorum, Frowin was the father-in-law of Offa of Angel (presented as a prince and later king of Denmark), whose father king Wermund liked both Frowin and his sons Ket and Wig. Frowin was challenged to combat by the Swedish king Athisl, and killed. He would later be avenged by his two sons Ket and Wig. However, the two sons fought against Athisl two against one, a national disgrace that was redeemed by their brother-in-law Offa, when he killed two Saxons at the same time, in "single combat". This event is referred to in Widsith as a duel against Myrgings.

Wôdan is the Germanic God for whom Wednesday is named. From Wikipedia:

Woden was worshipped during the Migration period, until the 7th or 8th century, when Germanic paganism was gradually replaced by Christianity, after which he was euhemerized as an important historical king, with multiple Anglo-Saxon kings claiming descent from him. Woden features prominently in both English and Continental folklore as the leader of the Wild Hunt. In Germany, a late attestation of an invocation of Wodan dates to the late sixteenth century. Anglo-Saxon polytheism reached Great Britain during the 5th and 6th centuries with the Anglo-Saxon migration, and persisted until the completion of the Christianization of England by the 8th or 9th century. For the Anglo-Saxons, Woden was the psychopomp or carrier-off of the dead, but not necessarily with exactly the same attributes of the Norse Odin. There has been some doubt as to whether the early English had the concepts of Valkyries and Valhalla in the Norse sense, although there is a word for the former, waelcyrge, attested in glosses, in reference to female creatures of classical mythology, the Erinyes, a Gorgon, Bellona and once Venus.