Question: When was the Spanish footballer  who was Among the main players behind the success of 1998–99 Valencia CF season born?

Context paragraphs:
1999 Supercopa de España: The 1999 Supercopa de España was a Spanish football competition, played over two legs on 8 August and 15 August 1999.  It was contested by Valencia CF, who were Spanish Cup winners in 1998–99, and FC Barcelona, who won the 1998–99 Spanish League.

Valencia CF: Valencia Club de Fútbol (] , ] ; also known as Valencia CF, Valencia or Los Che) is a Spanish football club based in Valencia.  They play in La Liga and are one of the most successful and biggest clubs in Spanish football and European football.  Valencia have won six La Liga titles, seven Copa del Rey titles, two Inter-Cities Fairs Cups (the predecessor to the UEFA Cup), one UEFA Cup, one UEFA Cup Winners' Cup and two UEFA Super Cups.  They also reached two UEFA Champions League finals in a row, losing to La Liga rivals Real Madrid in 2000 and Bayern Munich on penalties after a 1–1 draw in 2001.  Valencia were also members of the G-14 group of leading European football clubs.  In total, Valencia have reached seven major European finals, winning four of them.

Fran Villalba: Francisco 'Fran' José Villalba Rodrigo (born 11 May 1998) is a Spanish footballer who plays for Valencia CF Mestalla as a central midfielder.

List of Valencia CF Femenino seasons: This is a list of seasons played by Valencia CF Femenino, the women's section of Spanish football club Valencia CF, and its predecessor DSV Colegio Alemán.  The team was created in its original form in 1998, and has represented Valencia CF since the 2009–10 season.

Gaizka Mendieta: Gaizka Mendieta Zabala (] , ] ; born 27 March 1974) is a retired Spanish footballer who played as a midfielder.

2012–13 Valencia CF season: The 2012–13 Valencia CF season was the club's 95th season in existence and its 26th consecutive season in La Liga, the top flight of Spanish football.  The season marked the managerial debut of Mauricio Pellegrino, who assumed management of the club after the four-year tenure of Unai Emery.  Pellegrino was sacked on 1 December and replaced with Ernesto Valverde.  Manuel Llorente resigned after almost four years as Valencia president on 5 April 2013.

Domènec Balmanya: Domènec Balmanya i Perera (] ) (29 December 1914 – 14 February 2002), also referred to as Domingo Balmaña, is a former Spanish footballer and manager who spent most of his playing career at FC Barcelona.  As a manager, he guided CF Barcelona to the a Copa del Generalísimo win in 1957 and to victory in the first ever Fairs Cup in 1958.  He then had moderately successful spells at Valencia CF, Real Betis and CD Málaga before he guided Atlético Madrid to a La Liga title in 1966.  He subsequently managed Spain between 1966 and 1968.  After retiring as a coach he worked as a director of sport at both RCD Espanyol and FC Barcelona and as a director at a Catalan coaching school.  He also worked as a radio commentator.

2016–17 Valencia CF season: The 2016–17 Valencia CF season was the club's 97th season and its 82nd in La Liga.  As in the previous season, the club finished 12th in La Liga.  Valencia also competed in the Copa del Rey, entering at the Round of 32 and being eliminated by Celta Vigo 6–2 on aggregate in the Round of 16.

2014–15 Valencia CF season: The 2014–15 Valencia CF season was the club's 95th season in its history and its 80th in La Liga.  This was the first season since 1997–98 that Valencia would not compete in any European competition despite previous season's lowest position finish in six years.  Having missed out on European competition, the team competed in La Liga and the Copa del Rey.  In La Liga, they finished fourth, qualifying for the play-off round of the 2015–16 UEFA Champions League.  In the Copa del Rey, Valencia lost to Espanyol in the round of 16.  Dani Parejo was the club's top scorer in the league, with 12 goals, while Paco Alcácer was the club's top scorer overall, with 14 goals.

1998–99 Valencia CF season: Valencia CF had a successful season, finishing in the top four of La Liga and thus qualifying for the UEFA Champions League for the first time in almost 30 years, thanks to the extension of the competition to include more teams from the top leagues.  Valencia also won the Copa del Rey, ending a long trophy drought and marking a successful end to Italian coach Claudio Ranieri's first spell at the club.  Among the main players behind the success included Gaizka Mendieta, Javier Farinós and lethal striker Claudio López.

Supporting paragraphs: 1998–99 Valencia CF season Gaizka Mendieta
Answer: 27 March 1974