Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
What present-day nation has been led by:

Queen Isabella I (1474-1504)
King Ferdinand II (1475-1516)
King Alfonso XIII (1886-1931)
King Juan Carlos I (1975-2014)
King Felipe VI (2014-Present)
Japan
Syria
Sweden
Spain