Hola Antonieta.Here is a little history of Santillan that I picked up from my research.
SANTILLANES The plural form of Santillan which means "Sancta Juliana" or in English "Saint Julia".Santillan or Santillana is a Castilian name from Soria.One branch in Seville,Espana. There is also a Santillan Hotel in Espana. It's located in Spain and called "El Mar De Santillana.You can find it in a world map that includes a full size map of Spain.Santillan goes way back to the Medieval times.There is also SANTILLAN in FRANCE & ITALY. Saludos desde U.S.A,California de Hector