Complex sentence: Fritz-Hubert Gräser (January 3,1888-November 4,1960), was a German general of World War II and recipient of the Knight's Cross of the Iron Cross with Oak Leaves and Swords.
Split into simpler sentences: Fritz-Hubert Gräser (January 3,1888-November 4,1960) was a German officer. Having served in World War I, he was a general during World War II and recipient of the Knight's Cross of the Iron Cross with Oak Leaves and Swords.