Judges 12

It looks like the loss of Jephthah's daughter was not the only negative result of his campaign - some of his fellow Israelites also took it badly, and there was a short but bloody civil war. After that was quelled he led Israel for six years before he died.

It seems, actually, that most of the judges listed in this chapter led short lives. None of them spent more than a decade leading the Israelites, so either they started their careers as old men they must have died at a rather young age. At least one had grandsons, though, so he was likely on the older side.