Alternate timeline
(covers information from an alternate timeline)
Eric-Christopher was the son of Commander Worf and Deanna Troi in another quantum reality. Eric-Christopher was born in 2367 and had a younger sister named Shannara. As Worf and Troi's son, Eric-Christopher had a mixed Klingon-Betazoid-Human heritage. (TNG: "Parallels")
Eric was named after a nephew of Brannon Braga's. (Star Trek: The Next Generation Companion, 2nd ed., p. 276)
According to the Star Trek Encyclopedia, 2nd ed., p. 420, his full name was "Eric-Christopher Rozhenko".