Castro, nicknamed 'Quini', scored 54 league goals in 100 games for Barca and won two Copas del Rey (1981, 1983), as well as the UEFA Cup Winners' Cup (1982).
He died in Gijon after suffering a heart attack.
A statement from Barcelona read: “Enrique Castro 'Quini' dies (1949-2018), player and legend of our Club. The Camp Nou will never forget your legacy, RIP.”
Enrique Castro 'Quini' dies (1949-2018), a player and legend of our Club. The Camp Nou will never forget your legacy. RIP pic.twitter.com/BO3XiebuUB
— FC Barcelona (@FCBarcelona) February 27, 2018
Castro also spent two spells at Sporting Gijon, the first of which spanned 12 years.
“Quini has left us, Rest In Peace our myth,” a statement from Sporting read.
? Con profundo pesar damos cuenta del fallecimiento de nuestro querido Quini. DEP
? https://t.co/4ywg7jsNBf pic.twitter.com/uKgIjYi4J2
— Real Sporting (@RealSporting) February 27, 2018
An international with Spain, Castro played at the World Cup in 1978 and 1982, as well as the European Championship in 1980.
He scored eight goals in 35 appearances for the national side.
#LaLiga wish to send their condolences to the family and friends of former @RealSporting & @FCBarcelona legend, Enrique Castro 'Quini'. RIP pic.twitter.com/Tx6c0mRbyy
— LaLiga (@LaLigaEN) February 27, 2018
The sad passing of former Sporting Gijon & Barça player Enrique Castro “Quini” late last night dominates today's front cover of AS.#DEPQuini pic.twitter.com/QrZiYHGJDU
— AS English (@English_AS) February 28, 2018
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