Order a fake Universidad Internacional Isabel I de Castilla diploma. Where can I get a Universidad Internacional Isabel I de Castilla degree? Buy a Universidad Internacional Isabel I de Castilla certificate. Make a fake diploma. Universidad Isabel I, also known as Universidad Internacional Isabel I de Castilla, or UI1 for short, is a comprehensive university located in Burgos, Castile and León, Spain. It is a member of the European Credit Transfer System (ECTS). The university was established in 2008 and is accredited by the Spanish government and authorized by the Congress of Castile and León to award bachelor’s, master’s and doctoral degrees.