The daughter of the Earl of Yeonil, she is the object of John's affection and a target of the pagan conspirators. Kidnapped for a sacrifice and later tricked by Sir Palamides, she is repeatedly rescued by the Black Knight and ultimately accepts John's proposal.
Their romance develops from social obstacles and repeated rescues into an accepted marriage proposal.
John hopes to win Linet's hand, and at the end he asks to marry her; Linet accepts.
The Earl is Linet's father and her family is endangered by the attack on his castle.
The plot identifies Linet as the daughter of the Earl of Yeonil.
Palamides uses Linet as bait in an attempt to expose John's secret identity.
Palamides tricks Linet into coming to his castle and tries to make her reveal the Black Knight's identity.
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