Juliana Luise von Ostfriesland
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Juliana Luise von Ostfriesland (1698–1740) was a German noblewoman, Princess of Ostfriesland by birth, and the Duchess of Schleswig-Holstein-Sonderburg-Plön by marriage.
Born into the ruling House of Cirksena, Juliana Luise was the ninth child and fourth daughter of Christian Everhard, Prince of East Frisia and Princess Eberhardine Sophie of Oettingen-Oettingen.