It could be a reference to 'The King of Science Fiction'. Maybe it's the name of a science - fiction related entity like a magazine, a book series, or a character in a science - fiction story.
In most cases, 'El Rey' is not based on actual events. It's more of a fictional narrative crafted for entertainment purposes. The plot and characters might be inspired by various elements but not by real-life happenings.
Del Rey Science Fiction is a publisher or a line of science fiction works. It has been known for publishing various science - fiction novels, often with a wide range of themes from space exploration to futuristic societies. Many well - known science - fiction authors may have their works associated with Del Rey Science Fiction.