claim: Johann Wolfgang von Goethe became managing director of the theater at Weimar in May 1791.
evidence: Inga Aberg -LRB- Ingeborg Elisabeth ; 1773 -- 1837 -RRB- was a Swedish actress and opera singer , one of the most popular and well known actors of her time in Sweden .. Sweden. Sweden. opera singer. opera singer. She was active both as an actress at the Royal Dramatic Theater , and as an opera singer at the Royal Swedish Opera between 1787 and 1810 .. opera singer. opera singer. Royal Dramatic Theater. Royal Dramatic Theater. Royal Swedish Opera. Royal Swedish Opera