• It began as the union of the old hospitals of the Holy Mercy and of San Lázaro, which were handed over to the Order of San Juan de Dios in 1619.
  • The complex was made up of two courtyards, a church and the hospital itself, which was enlarged many times.
  • With the last alterations, completed in 1957, it came to cover 12,000 square metres.
  • It remained in use until October 1973, when it handed over its services to the newly opened Princesa Sofía Hospital.
  • In the years that followed the building fell into a sorry state of neglect, until in 1992 it was restored as the seat of the Instituto de Estudios Giennenses.