Hartmann III von Kyburg
Hartmann III von Habsburg-Kyburg (c. 1330–1377) succeeded his father Eberhard II as count of Kyburg and landgrave of Burgundy, reversing Eberhard's pro-Bern course after the so-called brother-murder of Thun.
He leaned toward Habsburg Austria and pledged several towns to the Austrian dukes. In 1375 his son Rudolf II inherited the indebted county of Neuchâtel-Nidau, and Hartmann died on 29 March 1377.