Christian Keymann

Christian Keymann (also ''Christian Keimann''; 27 February 1607 – 13 January 1662) was a German hymnwriter. He is known for writing the chorale "Meinen Jesum laß ich nicht" in 1658, which served as the base for Bach's chorale cantata ''Meinen Jesum laß ich nicht, BWV 124'', and other compositions. Provided by Wikipedia