"Incapable of due respect to superiors, it was no wonder she treated her children & inferiors with supercilious contempt. Her eldest Daughter, & She were long at variance & never reconciled. When the younger Duchess exposed herself by placing a monument & silly epitaph of her own composition & bad spelling to Congreve in Westminster abbey, her Mother, quoting the words, said, "I know not what pleasure She might have in his company, but I am sure it was no honour." With her youngest daughter the Duchess of Montagu old Sarah agreed as ill—"I wonder, said the Duke of Marlborough to them, that you cannot agree, you are so alike!" Of her grand-daughter the Duchess of Manchester daughter of the Duchess of Montagu, She affected to be fond. One day she said to her, "Dss of Manchester, you are a good creature & I love you mightily—but you have a mother!" "and She has a Mother!" answered the Manchester, who was all Spirit, justice, and honour, & could not suppress sudden truth."
January 1, 1970
https://en.wikiquote.org/wiki/Sarah_Churchill%2C_Duchess_of_Marlborough