More like Trystan & Isolde

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Bridei ChroniclesSeries
series3 books2004
Historical fantasy, set in medieval and british isles.
“The tasks that he sets Bridei appear to have one goal-to make him a vessel for some distant purpose.”
from the catalogue
Start with The Dark Mirror →
SevenwatersSeries
series7 books1999
Fantasy.
Start with Daughter of the Forest →
GuenevereSeries
series3 books1999
Historical fantasy and mythic fantasy, emotional in tone, about forbidden love, set in medieval and british isles.
“Raised in the tranquil beauty of the Summer Country, Princess Guenevere has led a charmed and contented life, until the sudden, violent death of her mother, Queen Maire, leaves the Summer Country teetering on the brink of anarchy.”
from the catalogue
Start with The Queen of the Summer Country →
Mordred TrilogySeries
series1 book2006
Dark in tone, about identity.
Start with Mordred, Bastard Son →
Outlander (Diana Gabaldon)Series
series26 books1991
Set in age of sail & 18th century.
“Initially set around the time of the Second World War, it focuses on nurse Claire Beauchamp, who travels through time to 18th-century Scotland, where she finds adventure and romance with the dashing Jamie Fraser.”
from the catalogue
Start with Outlander →
Heart's BloodNovel
Juliet Marillierstandalone novel2009
Fantasy, about curses.
“Juliet Marillier is a New Zealand-born writer of speculative fiction, predominantly historical fantasy.”
from the catalogue