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Catherine of Pomerania (1390-1426) was the daughter of Wartislaw VII, Duke of Pomerania and Mary of Mecklenburg.
Catherine was a candidate for a time for marriage to Prince Henry of Wales (later King Henry V of England). The marriage was suggested in 1400-1401. The marriage never occurred.
Suppose Prince Henry of England does marry Princess Catherine of Pomerania in 1405. What happens then?