Mlle. Anna-Frederica Heinel, a beautiful Prussian danseuse at this time in London, afterwards the wife of the elder Vestris.

"1771. June 22nd. Mr. William Hanger bets Mr. Lee Twenty Guineas to 25 that Mlle. Heinel does not dance in England at the Opera House next Month."—(Extract from the Betting Book at Brooks's Club, printed by Mr. G. S. Street in the North American Review for July 15, 1901.)
From the Unused Epilogue of She Stoops To Conquer