Orys, a commander in the army of Aegon the Conqueror and his bastard half-brother, had been sent by Aegon to seize Storm's End, the ancestral seat of the Storm Kings and capital of the Stormlands. Orys defeated King Argilac the Arrogant and took not only Storm's End but also his sigil - the black stag and his words, "Ours is the Fury" - as well as Argella, to cement his rule over the Stormlands. He became the first Lord Paramount of the Stormlands.
She is mentioned in Orys Baratheon's entry in The Lineages and Histories of the Great Houses of the Seven Kingdoms.
|Aegon I Targaryen|
|Maegor I Targaryen|
|Aenys I Targaryen|
|Jaehaerys I Targaryen|
In the books
While Orys is reported to have treated her chivalrously, Argella's feelings towards Orys remain unknown.
When her name first appeared in the lineages book in Season 1, it was spelled as "Argalia" - the name of Argilac Durrandon's daughter who married Orys Baratheon hadn't been publicly revealed at the time - but later, in the 2014 sourcebook The World of Ice and Fire, the officially spelling was given as "Argella" Durrandon.
The "Argella" spelling was finally confirmed as official in the TV continuity as well, when the Season 7 Histories & Lore set prominently listed it the on-screen credits.
|Lord:||None, extinct||Heir:||None, extinct|
|Seat:||Storm's End||Lands:||The Stormlands|
|Title(s):||Lords Paramount of the Stormlands · Lord of Storm's End|
|Ancestors:||Durran Godsgrief · Argilac the Arrogant · Orys Baratheon · Argella Baratheon · Monica Baratheon · Mychal Baratheon · Axel Baratheon · Lyonel Baratheon · Borros Baratheon · Ormund Baratheon|
|Current members:||None, extinct|
|Deceased members:||Robert Baratheon · Stannis Baratheon · Renly Baratheon · Steffon Baratheon · Cassana Baratheon|