There were two sons from this marriage, the younger one Jacques Cassini being born in 1677 and eventually succeeding to his father's position as head of the Paris Observatory.
May mga dalawang anak na ito mula sa kasal, ang bata-isa Jacques Cassini dinadala sa 1677 at sa huli succeeding na kanyang ama sa posisyon bilang pinuno ng Paris obserbatoryo.