Hortense is Scrooge's old horse.
Description
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Scrooge McDuck rode this temperamental mare, given to him by Murdo McKenzie after he proved the only chap stubborn enough to ride her, during his youth as a cow-boy. He'd named her after his little sister, because both of them had terrible tempers.
Behind the scenes
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Hortense was created by Don Rosa for The Life and Times of Scrooge McDuck, and hasn't appeared anywhere else save for covers and illustrations.