Which football team that was relegated to Tercera División in the 1962–63 Segunda División season was founded in 1958?
1962–63 Segunda División:  Baskonia, Sabadell, Sevilla Atlético, Plus Ultra, Atl. 1962–63 Segunda División:  Baleares, Cartagena and Real Jaén were relegated to Tercera División.
i don't know