Possible Clues:

• Mother Courage playwright
• Bertolt —, Ger. author
• "The Threepenny Opera" dramatist
• Bertolt —, German playwright
• Bertolt —, German writer
• Playwright's brother with genuine following in his own country
• Bertolt --, German poet, playwright, and theatrical reformer
• German dramatist and librettist, 1898-1956
• German dramatist, Bertold, d. 1956
• Bertolt __, playwright whose works include The Threepenny Opera