Hermann II was the Landgrave of Thuringia and the son of Louis IV, Landgrave of Thuringia, and Saint Elizabeth of Hungary. Wikipedia
Born: March 28, 1222, Creuzburg
Died: January 3, 1241 (age 18 years), Creuzburg
Parents: Elizabeth of Hungary and Louis IV, Landgrave of Thuringia
Grandparents: Hermann I, Landgrave of Thuringia, Gertrude of Merania, Andrew II of Hungary, and more
Partner: Elena di Brunswick-Lüneburg (1269–) and Elena di Brunswick-Lüneburg
Great-grandparents: Louis II, Landgrave of Thuringia, Otto I, Duke of Bavaria, Béla III of Hungary, and more