According to 'The Tale of Aragorn and Arwen', from Appendix A of LotR, Aragorn II (Elessar) and Arwen had at least three children: one son, Eldarion, who succeeded his father as king, and at least two daughters, as there is a mention of unnamed 'daughters'.
Like
Esty, I'd be very interested to know where you found those names,
Dark_Lord_Sauron! Welcome to the Downs!
