Which preposition to use with escorial

of Occurrences 1%

"When the Christians reconquered the country in 1149, the body of Poblet was revealed to the Church by miraculous lights, in consequence of which Ramón Berenguer IV immediately built the convent... (which) became the Escorial of Aragon."

to Occurrences 1%

To grasp it requires a knowledge of the minutest threads of a tangled web of intrigue which spread from the Escorial to the North Sea.

Which preposition to use with  escorial