Possible Clues:

• Writer holding horse for composer
• King Henry embraced composer
• Operettist
• After half a century one might still hear his happy relict
• Franz ..... composed The Merry Widow
• Hungarian who composed some subtle harmonies
• Franz of operetta fame
• Hungarian composer of operettas
• Coming out of terrible hardship, his widow was merry
• Franz . . . . . composed ''The Merry Widow''