Question: Gianni Versace was a friend of the English model who was recruited at what age?
Context: Versace, full name Gianni Versace S.p.A., is an Italian fashion label. Gianni Versace S.p.A. (] ), usually referred to as Versace, is an Italian luxury fashion company and trade name founded by Gianni Versace in 1978.  The main collection of the brand is Versace, which produces upmarket Italian-made ready-to-wear and leather accessories, while other diffusion lines are Versace Collection (mainly in the US), Versus Versace and Versace Jeans.  The Versace logo is the head of Medusa, a Greek mythological figure.  The logo came from the floor of ruins in Rome that the Versace siblings played in as children.  Gianni Versace chose Medusa as the logo because she made people fall in love with her and they had no way back.  He hoped his company would have the same effect on people.  The Versace brand is known for having flashy prints and bright colors. Gianni Versace (] , born Giovanni Maria Versace; 2 December 194615 July 1997) was an Italian fashion designer and founder of Versace, an international fashion house, which produces accessories, fragrances, make-up, and home furnishings as well as clothes.  He also designed costumes for the theatre and films.  As a friend of Eric Clapton, Diana, Princess of Wales, Naomi Campbell, Duran Duran, Madonna, Elton John, Cher, Sting, and many other celebrities, he was one of the first designers to link fashion to the music world.  Openly gay, Versace and his partner Antonio D'Amico were regulars on the international party scene. Donatella Francesca Versace (] ; born 2 May 1955) is an Italian fashion designer and current vice president of the Versace Group, as well as its chief designer.  She owns a 20% share of the business.  During the 1980s, Donatella's brother, Gianni Versace, launched a perfume dedicated to her, "Blonde", and gave her her own diffusion label, "Versus."  Versace took over the label's design after her brother's death. Versus Versace is the diffusion line of Italian luxury fashion house Versace.  It began in 1989 as the first diffusion lines by the house, a gift by the founder Gianni Versace to his sister, Donatella Versace.  After closing in 2005, Donatella resurrected it in 2009 with a capsule collection of accessories designed by emerging British designer Christopher Kane.  The brand is now very famous for its stylish watches, leather accessories and chic ready-to-wear. Allegra Versace Beck (] ; born 30th June 1986), commonly known as Allegra Versace, is an Italian heiress and socialite.  Since 2011 Allegra has been a director of Gianni Versace S.p.A. and has worked in New York City as a theatrical dresser. Naomi Elaine Campbell (born 22 May 1970) is an English model and actress.  Recruited at the age of 15, she established herself among the top three most recognisable and in-demand models of the late 1980s and the 1990s, and was one of six models of her generation declared :supermodels by the fashion industry. Nadège du Bospertus is a French model and former judge on "Italia's Next Top Model".  She was the muse of Giorgio Armani and Gianni Versace. Santo Domenico Versace (born 16 Dec. 1944) is the president and co-chief executive officer of Gianni Versace SpA, based in Milan, Italy.  Since 2008 he has been elected as Member of the Chamber of Deputies of the Italian Republic in the constituency of Calabria.  He is a member of the Alliance for Italy political party, formerly being a member of The People of Freedom. The Villa, Casa Casuarina, (also known as Versace Mansion) is a property previously owned by Italian fashion impresario Gianni Versace at Ocean Drive in the Miami Beach Architectural District, Florida.  Nowadays it operates as a boutique hotel known as The Villa, Casa Casuarina.
Answer: 15