Casus Belli Timeline

410 - Roman legions withdraw

415 - Ambrosius Aurelianus born.

c. 418 - Wortigernos ap Guortheneu, King of Powys, becomes High King. He is married to the daughter of former High King, Magnus Maximus, and has consider political backing thanks to his brother-in-law Eugenius holding 'Mid-South Wales' and descendants of another brother-in-law, Antonius, holding 'South Wales.'

c. 425 - As Vortigern has gained the rank of High King, he devolves authority of his kingdom to his three sons: Vortimer (Gwerthefyriwg) becomes the first king of Gwent; Cadeyrn is the nominal king of Powys, and Pascent becomes king of Builth.

429 - Artorius Aurelianus born. His father is Ambrosius elder brother, Uthyr, who dies of treachery later this year. At 14, Ambrosius steps into the role of elder brother/father figure for Artos.

441 - Irish raiders capture capital of Powys and hold it, sending King Cadeyrn into hiding.

446 - The ‘Groans of the Britons’ - unsuccessful appeal by the Britons to the Roman Empire for aid against Saxon raids. Vortigern, high king of Gwynedd, usurps the crown of the high king.

449 - Germanic 'invasion' of Britain begins. To combat the barbarian invasion from the north (Picts, Scoti) as well as prevent further Saxon incursions in the south, Vortigern pays the Saxon leader, Hengist, with land (Ceint) to act as a mercenary force. Hengist and his brother, Horsa, found Kent.

454 - High King Vortigern ceases paying Hengist's Saxons.

455 - Battle of Aylesford. Jutes defeat Votigern’s Britons. Horsa slain. King Cadeyrn of Powys slain.

456 - Campaign start. High King Vortigern has retreated to Gwynedd as his barons begin revolting under his rule. Artorius Aurelianus is betrothed to Vortigern's daughter, Gwenhwyfar, thus establishing himself as the next-in-line for the high kingship.