【民法総則】権利能力の始期と終期 https://shakaijin-shihoshiken.com/%e3%80%90%e6%b0%91%e6%b3%95%e7%b7%8f%e5%89%87%e3%80%91%e6%a8%a9%e5%88%a9%e8%83%bd%e5%8a%9b%e3%81%ae%e5%a7%8b%e6%9c%9f%e3%81%a8%e7%b5%82%e6%9c%9f/