Franz Ruckert

The user likely refers to Friedrich Rückert (often misspelled as Franz Ruckert), a prolific German Romantic poet, translator, and professor of Oriental languages born in 1788 and died in 1866[1][2]. He is renowned for his mastery of various verse forms and his translations of works from numerous Oriental languages, including notable poems set to music by composers like Mahler[2][3].

Schweinfurt, Germany May 16, 1788 Wikipedia
Romantic poetry Lyric poetry Translation