It combines a mausoleum for his family, with a palace, monastery, cathedral and school.

ECONOMIST: Spanish empire

The thriving monastery houses 2, 855 monks, a school, a library and a medical clinic.

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It was already known the area had been the site of the 18th Century Old High School, the 16th Century Royal High School and the 13th Century Blackfriars Monastery.

BBC: Grave site

As part of his legacy, he decided to convert his magnificent London home, itself a former Carthusian monastery founded in 1371, into an almshouse and school.

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