Sebastian Von Helfenstein & Maria D' Arenberg 
They had a son named Rudolf II Von.
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Personal Details
Sebastian Von Helfenstein
Sebastian Von was born on September 21st, 1521. He died at the age of 42 on May 16th, 1564.
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Children
Rudolf II Von Helfenstein
Rudolf II Von was born on March 24th, 1560. He died at the age of 40 on February 18th, 1601.