In 1970’s, Billionaire Daniel Keith Ludwig had his blood samples frozen, believing his ex-wife’s daughter, Patricia, might challenge his will and claim his property. Patricia filed a lawsuit after his death, but DNA analysis proved Ludwig was not her father, and the case was dismissed.

From [wiki](https://en.wikipedia.org/wiki/Daniel_K._Ludwig):

>Ludwig married Gladys Madeline Ludwig (1904–1978), in Florida on October 29, 1928. She gave birth to her daughter Patricia Margaret born on October 8, 1936. Estranged from his wife, Ludwig did not acknowledge the girl as his daughter.The couple divorced in April 1937.

>Believing Patricia might at some later time try to challenge the terms of his will and claim part of his estate, Daniel Ludwig had blood samples frozen in the 1970s that could be used for genetic testing if ever necessary. Patricia Ludwig did file a lawsuit in the 1990s after his death, but DNA analysis proved Ludwig was not her father, and the case was dismissed. Katherine Jones, Patricia’s aunt, claimed that everyone in the family thought that Patricia’s father was James Sullivan, a sales rep who died in a car accident in 1939

Clever ̶g̶i̶r̶l̶ ̶ guy.

You know mans smart when he wins even after death