Possible Clues:

• It's north of the Strait of Gibraltar
• 1968 Michener book
• W. European peninsula
• One more boozy-sounding part of Europe
• Part of Asia losing southern peninsula
• Michener book subtitled 'Spanish Travels and Reflections'
• African country loses lake and peninsula northwards
• Spain + Portugal
• Great European peninsula containing Spain and Portugal
• Cold place lacking sun? Yes and no