Rudolph IV of Neuchâtel

Rudolph IV (1274–1343), called Rollin, succeeded his father Amadeus as lord of Neuchâtel in 1288; he lost imperial immediacy and received his lands as a fief from John I of Chalon-Arlay. In 1294 he married Eleanor, daughter of Louis I, Baron of Vaud. Rudolph defeated the lords of Valangin at Coffrane in 1296.

He allied with Bern in 1308 and founded Le Landeron facing the Bishopric of Basel, and died in 1343, leaving the county to his son Louis I.