Who is the oldest winner ever of the Eurovision Song Contest?

Explanation

The Olsen Brothers were the oldest winners ever of the Eurovision Song Contest for just one year. They won with the song "Fly on the Wings of Love" in 2000. Jørgen was 50 years old and younger brother Noller 46 years old. The year after, in 2001, Dave Benton won the Eurovision Song Contest and became the oldest winner ever with the song "Everybody".