Bernhard Von Tierstein
Bernhard Von was born about 1375.  He died on December 13th, 1437 in Zurich.

 Ita Von Toggenburg
Ita Von was born about 1375.  She died before June 20th, 1414.

 Susanne Von Tierstein
Susanne Von was born before June 20th, 1414.  She died before March 23rd, 1460.