Cherin was a legendary king of the Britons as recounted in Geoffrey of Monmouth's "Historia Regum Britanniae".
 His father was King Porrex II and he was succeeded by his three sons in turn, Fulgenius, Edadus, and Andragius.
Heremod (Proto-Norse: *"Harimōdaz" , Latin form: Heremodius) is a legendary Danish king and a legendary king of the Angles who would have lived in the 2nd century and known through a short account of his exile in the Old English poem "Beowulf" and from appearances in some genealogies as the father of Scyld.
 He may be the same as one of the personages named Hermóðr in Old Norse sources.
 Heremod may also be identical to Lother (Latin Lotherus) in Saxo Grammaticus' "Gesta Danorum" (Book 1) or the same history may have been applied to two originally separate figures.
Millus was a legendary king of the Britons as recounted by Geoffrey of Monmouth.
 His father was King Catellus and was succeeded by his son, Porrex II.
Wihtlæg, "Whitlæg", "Wighlek", "Wiglecus", "Wiglek", "Witlac" or "Viglek" is a legendary king of either Denmark or Angeln in Germanic legends.
 He is known in Saxo's kings of Denmark by the name of "Vigletus".
Porrex II was a legendary king of the Britons as recounted in Geoffrey of Monmouth's "Historia Regum Britanniae".
 His father was King Millus and he was succeeded by his son, Cherin.
Offa is a legendary king of the Angles in the genealogy of the kings of Mercia presented in the "Anglo-Saxon Chronicle".
 He is the son of Wermund and the father of Angeltheow.
Dan II is one of the legendary Danish kings, the son of Offa of Angel, described in Saxo Grammaticus' "Gesta Danorum".
Belus, also known as Belus II, was a legendary king of Tyre in Virgil's "Aeneid" and other Latin works.
 He was said to have been the father of Dido of Carthage, Pygmalion of Tyre, and Anna.
 The historical father of these figures was the king Mattan I, whose father was Baal-Eser II.
Sisillius I ("Welsh:" Seisyll) was a legendary king of the Britons as accounted by Geoffrey of Monmouth.
 He was preceded by Gurgustius and succeeded by Jago.
 He was the father of Kimarcus, king of the Britons, and shares his name with one of the sons of Ebraucus, and two later kings of the same name (Sisillius II and Sisillius III).
 Geoffrey has nothing to say of him beyond this.
Uther Pendragon ( ; Welsh: "Uthyr Pendragon, Uthyr Bendragon" ) also known as King Uther, is a legendary king of sub-Roman Britain and the father of King Arthur.
 A few minor references to Uther appear in Old Welsh poems, but his biography was first written down by Geoffrey of Monmouth in his "Historia Regum Britanniae" ("History of the Kings of Britain"), and Geoffrey's account of the character was used in most later versions.

Question: Who is Dan II of Denmark's father, also known as the legendary king of the Angles?
Answer: Offa of Angel