Burkhard Zumbrunnen was the oldest son of Walter Zumbrunnen and the grandson of Werner, Baron of Attinghausen. He was likely born in the early 1200s. Burkhard may have been born in the Zumbrunnen Castle which his father had inherited in 1209.
Burkhard rose to prominence in the valley of Uri, and in the year 1241 he became the third Landammann, which means he was the leader of the people of Uri. He held this office through at least 1251. In 1251 he helped arrange an alliance of mutual protection between Uri and the city of Zurich.
He is sometimes identified as Burkhard Zumbrunnen I, or the Elder, to distinguish from later family members named Burkhard.
He was memorialized in the yearbook of the Monastery of the Order of St. Lazarus, where he was prayed for every year on April 23, which may be his date of death.
Name: Burkhard Zumbrunnen
Residence: Castle Zumbrunnen or Attinghausen
Offices: Landammann of Uri, 1241-1251.
Death: After 1251
Father: Walter Zumbrunnen
Siblings: Herman Zumbrunnen
Children: Burkhard Zumbrunnen, Conrad Zumbrunnen
First cousin: Ulrich Von Attinghausen and Von Schweinsberg
Uncles: Werner II Von Attinghausen and Von Schweinsberg,
Grandparents: Werner I Von Attinghausen, Richenza Von Löwenstein
Burkhard Zumbrunnen entry in the Nobiliaire Militaire Suisse
The text of the alliance between Uri and Zurich is available in Latin in a historical work from the 1500s by Josias Simmler.
Burkhard Zumbrunnen entry at Stammler Genealogie
Burkhard Zumbrunnen entry at FamilySearch.org. His year of birth is estimated at 1209.
Burkhard Zumbrunnen is included in Bucelin’s genealogy of the Zumbrunnen family from the 1600s. (He is in the third generation of people; his name is written in Latin as Burcardus.)
A “Magister Burkardus” is memorialized in the yearbook of the Monastery of the Order of St. Lazarus, where he was prayed for every year on April 23. That likely refers to this Burkhard, who was frequently identified with his title of Landammann or Amman (which means magistrate).