The film The Count of Luxemburg is based on an operetta by a composer born in what year?
1870
Title: The Count of Luxemburg (1957 film)
Passage: The Count of Luxemburg (German: Der Graf von Luxemburg) is a 1957 West German musical comedy film directed by Werner Jacobs and starring Gerhard Riedmann, Renate Holm and Gunther Philipp.  It is based on the 1909 operetta "The Count of Luxemburg" by Franz Lehár.
Title: Theobald I, Count of Bar
Passage: Theobald I (French: "Thibaut or Thibauld de Bar") (born  1158 – died 13 February 1214) was the count of Bar from 1190 until his death, and a count of Luxemburg from 1197 until his death.  He was the son of Reginald II of Bar and his wife Agnès de Champagne.  He became count when his brother, Henry, was killed in the Siege of Acre.
Title: Franz Lehár
Passage: Franz Lehár (Hungarian: "Lehár Ferenc" ; 30 April 1870 – 24 October 1948) was an Austro-Hungarian composer.  He is mainly known for his operettas, of which the most successful and best known is "The Merry Widow" ("Die lustige Witwe").
The Count of Luxemburg (1957 film) Franz Lehár