Her Royal Highness Princess Letizia of Asturias attended the inauguration of the XV Congreso Estatal de Voluntariado held at the Bilbao Exhibition Centre on November 27, 2012.  This three-day conference was organized by the Gobierno Vasco y la Plataforma del Voluntariado de España del Ministerio de Sanidad, Servicios Sociales e Igualdad.