During the Sengoku period (the period of Warring States) in Japan, it was possible to discern the ranks of warriors killed in war by checking whether they were wearing fundoshi loincloths or not, since cloths at that time were generally expensive.
昔は布が高価であったことから、戦国時代(日本)では戦死者の身分は褌の有無で見分けを行っていた。