Jean-Dominique, comte de Cassini was a French astronomer, son of César-François Cassini de Thury and great-grandson of Giovanni Domenico Cassini.
Cassini was born at the Paris Observatory. Wikipedia
Born: June 30, 1748, Paris, France
Died: October 18, 1845 (age 97 years), Thury, France
Children: Alexandre Henri Gabriel De Cassini
Parents: César-François Cassini de Thury