Patty Bergen is a fictional character from the novel "Summer of My German Soldier" by Bette Greene. She is a young Jewish girl living in a small town in the southern United States during World War II. Patty struggles with feelings of isolation and seeks acceptance in a world filled with prejudice and conflict. Throughout the story, Patty forms a bond with a German prisoner of war named Anton, which challenges her understanding of loyalty and friendship. Her experiences highlight themes of compassion, identity, and the impact of war on individuals and communities.