Conversation so far:
What was the political views of Sven Hedin?
Sven Hedin was a monarchist.
Which Monarchs or politicians did Sven Hedin support ?
Sven Hedin wrote the Courtyard Speech, in which King Gustaf V promised to strengthen the country's defenses.
King Gustaf V was the king of which country ?
He holds the record of being the oldest monarch of Sweden and the third-longest reigning after Magnus IV and Carl XVI Gustaf.

Question: What was some of his controversial political views ?
Self-contained rewrite: What was some of Sven Hedin's controversial political views ?