Gideon died at a good old age

29Then Jerubbaal son of Joash went and lived in his house.

30Gideon had seventy sons, his own offspring, because he had many wives.

31And his concubine who was in Shechem also bore him a son, and he named him Abimelek.

32And Gideon son of Joash died at a good old age and was buried in the tomb of Joash his father, in Ophrah of the Abiezrites.