The question follows a post by the former MEP on 14 October, reacting to an interview of the Angolan businesswoman to Lusa.

In an interview that same day, Isabel dos Santos told Lusa that she works with several banks and that she was not favoured because she is the daughter of former Angolan President José Eduardo dos Santos.

"I have a lot of debt, I have a lot of financing to pay, interest rates are high, it is not always easy to have this business sustainability, to be able to face all the financial part of the business, but [...] we work for that," she said in an interview in Cabo Verde.

After the first post, Gomes accused the Santos of using EuroBic (the bank of which she is a shareholder) to launder her money.

On 31 October, EuroBic said that it would file a lawsuit against the former MEP, who has accused people linked to the Angolan regime of using Portugal to legalise money diverted from Angola, particularly during the rule of José Eduardo dos Santos.

In a statement sent to newsrooms, the bank, chaired by former Portuguese finance minister, Fernando Teixeira dos Santos, said that Ana Gomes' statements and insinuations are "false" and that, because they damage the good name and reputation of EuroBic, the bank decided to proceed with the appropriate legal proceedings to safeguard their rights".

"These comments were made following Gomes’ Twitter post referring to EuroBic as part of a 'money laundering' scheme.”

In an interview in November to Lusa, the former Socialist MEP Ana Gomes said she will present in court all the information she has, involving the doubts she has cast on the origin of the investments of Isabel dos Santos if she is taken to court.

"I stand by everything I said. And said that I have provided several instances, European and national, with a lot of information that should lead to questioning the suitability of Isabel dos Santos," she said in the interview.

The beginning of the trial was scheduled for 2 p.m. at the court of Sintra, Portugal.