Henry I of Hesse "the Child" was the first Landgrave of Hesse. He was the son of Henry II, Duke of Brabant and Sophie of Thuringia. Wikipedia
Born: June 24, 1244
Died: December 21, 1308 (age 64 years), Marburg, Germany
Great-grandparents: Hermann I, Landgrave of Thuringia, Godfrey III, Count of Louvain, Andrew II of Hungary, and more
Grandchildren: Henry II, Landgrave of Hesse, Otto of Hesse, Ludwig the Younger of Hesse, and more
Great grandchildren: Hermann II, Landgrave of Hesse, Adelaide of Hesse, Catherine of Henneberg, and more