Warning! Spoilers ahead for Dune.
While Paul Atreides (Timothée Chalamet) has two powerful parents in Dune, why won't Duke Leto (Oscar Issac) of House Atreides marry Lady Jessica (Rebecca Fergusson)? As the film from director Denis Villeneuve progresses, it's revealed that while Lady Jessica is Paul's mother, she is only the concubine of Duke Leto rather than his wife. While Leto at one point says that he should have married Jessica, why weren't they wed in the first place?
In Frank Herbert's
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