Edmund Burke, in a letter to Mrs. Crewe on December 27, 1796, mentions the widely-circulated, and highly suspected rumours of Pitt's intended marriage to Eleanor Eden:
"The talk of the town is of a marriage between a daughter of his [Lord Auckland's] and Mr. Pitt; and that our statesman, our premier des hommes, will take his Eve from the garden of Eden." (Vol. 4, p. 417).
No smoke without fire!
'The Correspondence of the Right Honourable Edmund Burke; between the Year 1744 and the period of his decease in 1797, Volume 4,' (1844) ed. Charles William, Earl Fitzwilliam and Sir Richard Bourke. London: Francis & John Rivington, p. 417.