Back Франц Ердман (Саксония-Лауенбург) Bulgarian Franz Erdmann (Sachsen-Lauenburg) German Φραγκίσκος Έρντμαν της Σαξονίας-Λάουενμπουργκ Greek Francisco Erdmann de Sajonia-Lauenburgo Spanish François-Erdmann de Saxe-Lauenbourg French Francesco Ermanno di Sassonia-Lauenburg Italian フランツ・エルトマン (ザクセン＝ラウエンブルク公) Japanese Frans Erdmann van Saksen-Lauenburg Dutch Francisco Erdmann de Saxe-Lauemburgo Portuguese Франц Эрдман (герцог Саксен-Лауэнбурга) Russian
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| Francis Erdmann | |
|---|---|
| Duke of Saxe-Lauenburg | |
| Reign | 1665–1666 |
| Predecessor | Julius Henry |
| Successor | Julius Francis |
| Born | 25 February 1629 Theusing |
| Died | 30 July 1666 (aged 37) Schwarzenbek |
| Consort | Sibylle Hedwig of Saxe-Lauenburg |
| House | House of Ascania |
| Father | Julius Henry, Duke of Saxe-Lauenburg |
| Mother | Elisabeth Sophia of Brandenburg |
| Religion | Lutheran |
Francis Erdmann of Saxe-Lauenburg (Theusing, 25 February 1629 – 30 July 1666, Schwarzenbek), was duke of Saxe-Lauenburg between 1665 and 1666. He was the eldest son of Duke Julius Henry and his second wife Elisabeth Sophia of Brandenburg, daughter of John George, Elector of Brandenburg.