Kaiser Wilhelm II of Germany owned how many schlosser or castles?
Answer: 69. Even if he tried, he could not manage a full week in each, in any given year. In present currency, if the average value of each castle and surrounding land was, say, US$10 million, at some $690 million, the value of his property portfolio was a not inconsequential part of his net worth.
Source: The Last Kaiser by Giles MacDonogh