Spoilers through Iron Flame. The overview is spoiler free; facts that give away later events stay folded under the book that reveals them.
Wingleader in the Riders Quadrant when the series opens
Xaden Riorson first appears in Fourth Wing, the first book of Rebecca Yarros's Empyrean series. When the story opens he is the wingleader of the wing called Fourth Wing, part of the Riders Quadrant at Basgiath War College. His family, his dragon and what the guides record from Iron Flame are spoilers, so they wait in the folded sections below, grouped by the book that reveals them. Every line there credits the fan guides, at least two, that list it.
Xaden first appears in Fourth Wing, book one of the series.
No spoilers Listed by theBookFeed and Esta Pinto (both opened Oct 14, 2026)
Xaden is a cadet at Basgiath War College, in its Riders Quadrant.
No spoilers Listed by theBookFeed and Empyrean Riders (both opened Oct 14, 2026)
He is the wingleader of Fourth Wing in the Riders Quadrant.
No spoilers Listed by theBookFeed and Empyrean Riders (both opened Oct 14, 2026)
His father is Fen Riorson.
Spoilers through Fourth Wing Listed by theBookFeed and Empyrean Riders (both opened Oct 14, 2026)
Liam Mairi was fostered with him, and both guides call Liam his foster brother.
Spoilers through Fourth Wing Listed by Empyrean Riders and theBookFeed (both opened Oct 14, 2026)
His dragon is Sgaeyl.
Spoilers through Fourth Wing Listed by theBookFeed, Empyrean Riders and Esta Pinto (all opened Oct 14, 2026)
After graduating he serves as a lieutenant, which is his rank in Iron Flame.
Spoilers through Iron Flame Listed by theBookFeed and Empyrean Riders (both opened Oct 14, 2026)
These facts come from unofficial fan guides, not the author or the publisher. A fact is shown only when two sites with different owners state the same thing; we write every sentence ourselves and quote nothing.