Mattathias' sons were named Judas Maccabeus, Simon Thassi, Eleazar Avaran, and Jonathan Apphus. Judas Maccabeus is the one I will be talking about.
He was the leader of the maccabean revolt after his father, Mattathias, died. According to The Jews, a History, Judas died about five years after he got control of the revolt, but he killed Nicanor, a Seleucid general who threatened to destroy the Temple.