István was the son of Tamás Széchy de Rimaszécs and Katalin Batthyány de Németújvár. The date and place of his birth have not been found.
His wife was Zsófia Bánffy de Alsólendva. They were married, but the date and place have not been found. They had no known children.
Tamás Széchy de Rimaszécs |
György Széchy de Rimaszécs |
Miklós Széchy de Rimaszécs |
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Boldizsár Batthyány |
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Dorottya Zrínyi de Brebir |
Miklós V Zrínyi de Brebir |
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Katalin Frangepán |
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