Her given name was chosen by Totò in memory of Liliana Castagnola, to whom the Neapolitan actor had been romantically linked before joining Diana Rogliani and who had committed suicide for him.

With Miele himself and Matilde Amorosi she wrote the book Every limit has a patience, published by Rizzoli Editore and dedicated to Totò.

She was often a guest on television, in reminiscent broadcasts of the figure of her father, of which she promoted the memory with events in various places in Italy, also dedicating biographical books, including Malafemmena, published in 2009 by Arnoldo Mondadori Editore.

Subsequently, the marriage with Buffardi failed after a few years and she married Sergio Anticoli, with whom she had her daughter Elena (born in 1969, and founder of the commercial brand "CafféTotò").

On 21 September 2013, de Curtis attended the feast of San Gennaro organized in Naples, where she received a lifetime achievement award.