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Prince Karl Eusebius, the father of Hans-Adam I, Prince of Liechtenstein, was a member of the prominent House of Liechtenstein, known for their sovereignty over the Principality of Liechtenstein. Born on April 12, 1720, his reign as the ruling Prince extended from 1772 until his passing in 1789. As an influential figure, Prince Karl Eusebius contributed to the prosperity and growth of Liechtenstein during his time.