History of Gustavus Adolphus by John L. Stevens
"a thorough biography"
http://www.amazon.com/History-Gustav.../dp/B00FW4A4AA
http://www.amazon.co.uk/History-Gust.../dp/B00FW4A4AA
History of Germany in the Middle Ages
Ernest Henderson's History of Germany in the Middle Ages is an expansive
history of from the fall of the Western Roman Empire until the end of the
Middle Ages.
http://www.amazon.com/History-German.../dp/B00G9CIOUQ
http://www.amazon.co.uk/History-Germ.../dp/B00G9CIOUQ
India on the Eve of the British Conquest, a Historical Sketch by Sidney Owen
covers the end of the Moghul Empire and the rise of the Maratha Empire.
http://www.amazon.com/India-British-.../dp/B00GOJOVQA
http://www.amazon.co.uk/India-Britis.../dp/B00GOJOVQA