More than a mere palace, El Escorial is an entire royal city living quarters, church, monastery, mausoleum, and museum under one roof.
El Escorial, despite it's many utilities, contains no living quarters. 
mnli hypothesis: El Escorial, despite it's many utilities, contains no living quarters.  premise: More than a mere palace, El Escorial is an entire royal city living quarters, church, monastery, mausoleum, and museum under one roof.