Johanna was the daughter of Simon V von Saarbrücken and Margherita di Savoia. The date and place of her birth have not been found.
Her husband was Gerhard VII von Blankenheim. They were married, but the date and place have not been found. Their only known child was Gerhard VIII (1342/43-<1406).
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Simon V von Saarbrücken |
Johann I von Saarbrücken-Commercy |
Simon IV von Saarbrücken-Commercy |
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Marguerite de Broyes |
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Mahaut d'Aspremont |
Gobert VII d'Aspremont |
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Agnès de Coucy |
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Margherita di Savoia |
Louis I de Savoie-Vaud |
Tomaso II di Savoia |
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Béatrix di Fieschi |
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Jeanne de Montfort |
Philippe II de Montfort-Castres |
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Jeanne de Lévis-Mirepoix |