"Presidential Princess" - she became Africa's richest woman

"Engineer. Entrepreneur. Investor. Public person."

When Isabel dos Santos on Twitter describes herself, the business is in the first room. On Instagram it's more of the same, now with luxury celebrity mingle.

Nicki Minaj? Check. DJ Khaled, check. Usher, check. Lindsey Lohan? Oh yes.

But when you scratch the surface it doesn't get as flattering.

Isabel dos Santos, 46, is good for over SEK 20 billion, but secret now leaked documents that SVT has taken note of show how she has become rich with the help of her father the president. How she shot herself at Angola's population where half are estimated to live in poverty despite the country's vast wealth.

As part of the international investigative journalism network ICIJ, SVT has taken part of Luanda Leaks, which was named after Angola's capital. Over 715,000 internal documents from the dos Santos empire. They show how she received her father's presidential decree, generous loans and lucrative public contracts.

At the heart of the business are Angola's largest assets, where government intervention weighs heavily: oil, diamonds, telecommunications, cement production.

"Isabel dos Santo's business background is her father's presidential decree and her father's power," Angola's perhaps best-known anti-corruption activist Rafael Marques de Morais told ICIJ.

- The state has always provided political and economic backing.

The fact that Angola is corrupt is well known. The country, which Dos Santos' father José Eduardo ruled hard with for 38 years, falls in Transparency International's latest index of corruption at 165 out of 180. Sweden has been a major aid donor with close ties to Angola. The Ministry of Foreign Affairs today describes widespread corruption "at all levels" in the administration.

Luanda Leaks reveals the business empire that dos Santos and her husband control with the help of intermediaries, over 400 companies and subsidiaries in 41 countries. Not least in Portugal where she has gained a foothold in the EU with investments in banks, energy and media companies.

It is an empire that international consulting firms such as Boston Consulting, tax planners and audit firms that PWC has helped her build. And to stop the wealth of tax havens.

The cooperation has continued even though many banks in the West have refused to do business with dos Santos, after asking questions about where her wealth actually comes from.

"They hear about Isabel and flee like the devil from the cross," complains one of dos Santo's employees in an internal email from 2014 to a colleague, in a conversation about Spanish Banco Santander.

These are well-known companies that many Swedish companies employ, including PWC, KPMG and Boston Consulting. When the ICIJ with SVT and 35 other editors have contacted the companies as part of this review, everyone is referring to business secrecy and general control guidelines,

However, PWC announces that it is investigating the matter and that it has "acted to stop any ongoing work" for companies controlled by the dos Santos family. At the same time, according to the documents that SVT reviewed, PWC has made millions for a long time through its dealings with dos Santos.

But tying their business so close to the presidential power is not risk-free, something that has become clear since 2017 when José Eduardo dos Santos left the post and was succeeded by former Secretary of Defense Joao Lourenco.

Lourenco has sworn to sweep away the corruption. Shortly after taking office, Isabel was fired from the post of chairman of the national oil company Sonangol, a post she got from the father's then government.

One of several examples of how dos Santos brought public funds out of Angola is when Sonangol in 2017 brought over almost four hundred million SEK to a company in Dubai owned by dos Santos known. She is also accused of having approved over SEK 1 billion in consultancy fees as chairman of the board, many of whom went to companies with links to her own business.

And worse for Isabel dos Santos. Just before the turn of the year, Angolan authorities announced that they had frozen their assets in the country. dos Santos, her husband and a close companion are reported to owe Angola over SEK 10 billion.

The proposal came about two weeks after ICIJ contacted the authorities about the details that emerged in this review.

The "Angola princess" herself now defends herself with beak and claws against criticism and investigations. According to dos Santos, it is a politically motivated "witch hunt" in order to harm her and her father's family. In a two-sided letter from her lawyers, she denies all charges.