Richard Cannon, a lawyer for the Grillo sister's said: "My clients are naturally relieved at the verdict of the jury. This has been a long hard fight, played out in the gaze of the world's media.
"Elisabetta and Francesca would like to thank their friends and relatives for their love and support. Additionally they'd like to thank those members of the public who've expressed their best wishes. Finally they have asked me to thank their legal team for all their hard work."
Celebrity cook Nigella Lawson said she was "disappointed but unsurprised" after her two former personal assistants were cleared of fraud.
The revelations that emerged in the fraud trial of two former aides to Nigella Lawson are unlikely to damage the TV chef's meteoric career.
Nigella "let the children smoke weed," an ex-PA has alleged, admitting she had wanted to drop drug claims out of sympathy for her ex-boss.