Allegra, the late star's daughter from his second marriage to Christine Kaufmann, is upset that the actor's sixth wife Jill failed to inform his kin about her plans to sell off paintings, memorabilia and keepsakes - and then reportedly refused to let his children grab sentimental items.
Allegra tells The Hollywood Reporter, "Jill Curtis is the only beneficiary of this auction. She did not consult us. This is not what my dad would have wanted.
"Jill's even selling off credit cards and driver licenses. She's also selling my dad's letters to Cary Grant, Jerry Lewis, Picasso - these belong in a museum.
"It's the dissemination of the estate of Tony Curtis. He deserves better."
But Julien's Auctions boss Darren Julien, who will oversee the Curtis estate sale, begs to differ.
He says, "Tony came to many of our auctions with Jill and said he wanted Julien's to handle his auction after he died. I know this is exactly what he wanted."
Curtis died last September (10).