First recorded (as “Piano”) by Mina (1960).
Hit versions by Matt Munro (US #18/UK #10 1961), Frank Sinatra (US #27/MOR #4 1964), Elvis Presley (C&W #8 1978).
From the wiki: “‘Softly, as I Leave You’ was first composed in Italian as ‘Piano’ (trans. ‘softly’) by Giorgio Calabrese and Tony De Vita. It was first performed by Mina at the 1960 Sanremo Music Festival, and was first released as a recording by her in 1960.
“English songwriter Hal Shaper noticed the song and in November 1961 wrote English-language lyrics to the melody, titling it ‘Softly, As I Leave You’. The best-known versions of this are those by Matt Munro (#10 on the British charts in 1962) and Frank Sinatra (#27 on the Billboard Hot 100/#4 on the MOR chart in 1964). When the Sinatra family announced Frank’s death on May 14, 1998, they placed an announcement on his website that was accompanied by his recording of ‘Softly, As I Leave You’.