Dominique, comte de Cassini [SEP] father
Dominique, comte de Cassini
Jean-Dominique, comte de Cassini (30 June 174818 October 1845) was a French astronomer, son of César-François Cassini de Thury.
Cassini was born at the Paris Observatory. In 1784 he succeeded his father as director of the observatory; but his plans for its restoration and re-equipment were wrecked in 1793 by the animosity of the National Assembly. His position having become intolerable, he resigned on 6 September and was thrown into prison in 1794, but released after seven
Henri Cassini
Count Alexandre Henri Gabriel de Cassini (May 9, 1781 – April 23, 1832) was a French botanist and naturalist, who specialised in the sunflower family (Asteraceae) (then known as family Compositae). 
He was the youngest of five children of Jacques Dominique, Comte de Cassini, famous for completing the map of France, who had succeeded his father as the director of the Paris Observatory. He was also the great-great-grandson of famous Italian-French astronomer, Giovanni Domenico Cassini