Heinrich Zumbrunnen, sometimes Henrikus, was the third child and second son of Burkhard Zumbrunnen.
While sources agree that Heinrich was the son of Burkhard Zumbrunnen, I believe this is some confusion in these sources and that he is the son of Burkhard Zumbrunnen who was a Knight in the Order of St. Lazarus, and the grandson (not the son) of Landammann Burkhard “Schüpfer” Zumbrunnen.
No details are known of his life, aside from his heroic death at the famous Battle of Laupen. A full account of this battle can be read here.
In brief: in the early 1300s, the city of Bern had asserted its independence from feudal tyrants like the Counts of Burgundy and the House of Hapsburg. In 1339, the Hapsburgs, the counts of Burgundy and other nobles laid siege to the town of Laupen. Bern called for help from the mountainous regions of Switzerland. Heinrich joined his cousin, Johann Von Attinghausen, and several thousand other men in marching to Bern’s relief. The men from Uri were outnumbered and the Hapsburgs were heavily armored. But the men of Uri, with superior tactics and valor, triumphed; the nobility in western Switzerland never really recovered from this defeat. But the men of Uri suffered heavy losses; Heinrich was among the fallen on that day of June 21, 1339.
He was regarded as a war hero in his homeland. His name is recorded multiple times in the Necrology of the Monastery of the Order of St. Lazarus. Every year, the church prayed for him on April 15 and May 18. His fall in battle appears to be the beginning of the tradition of naming men in the family Heinrich/Henry.
According to the Nobiliaire Militaire Suisse, Heinrich was the father of Walter Zumbrunnen. But most other sources agree that Heinrich was the uncle of Walter.
Name: Heinrich Zumbrunnen
Birth: Late-1200s or early 1300s
Death: June 21, 1339 at the Battle of Laupen
Children: Walter Zumbrunnen? (according to the Nobiliaire Militaire Suisse, he is Walter’s father, but according to other sources, Walter is the son of Johann Zumbrunnen, making him Heinrich’s nephew.)