I think that's right....one on each side of Elrond, and then one ("Figwit" I think), seated next to Aragorn.
How many sons of Elrond are there in the book? I was thinking it was 2, but maybe there were 3?
Elrond has two sons, Elladan and Elrohir. 'Figwit' is no relation.
Just 2...Elladan and Elrohir....and then there's Arwen.