Princess Helena of Nassau was born on May 17, 1861, in Düsseldorf, Germany. She was a member of the House of Nassau and the daughter of Prince William of Nassau and Princess Louise of Saxe-Meiningen. Helena became known for her charitable work and dedication to social causes throughout her life. In 1883, she married Prince Henry of Battenberg, and they had three children together. Helena's family connections included ties to various European royal families, making her an important figure in the social and political landscape of her time. She passed away on November 1, 1922.