Question: Which monarch of the Mexican Empire was the 19th-century castle on the Gulf of Trieste Miramare Castle built for?
Sentence (from "Miramare Castle"): It was built from 1856 to 1860 for Austrian Archduke Ferdinand Maximilian and his wife, Charlotte of Belgium, later Emperor Maximilian I and Empress Carlota of Mexico, based on a design by Carl Junker.
Relevant evidence: Yes