More than 30 years ago, Mauro Morandi was attempting to sale from Italy to Polynesia when he ended up on Budelli, a small private island off Sardinia. Morandi, now 81, never left and eventually became the island's official caretaker. Above is a Great Big Story about Morandi from two years ago.
https://boingboing.net/2020/07/28/italian-island-hermit-may.html
https://boingboing.net/2020/07/28/italian-island-hermit-may.html