In this March 5, 2015 photo, Isabel dos Santos, reputedly Africa's richest woman, attends the opening of an art exhibition featuring works from the collection of her husband and art collector Sindika Dokolo in Porto, Portugal. On Monday, Jan. 6, 2020, Angola's foreign minister Manuel Augusto said that there is no political motivation behind the government's demand for more than $1 billion from dos Santos, her husband and a Portuguese business partner. Isabel dos Santos is a daughter of Jose Eduardo dos Santos, who ruled the oil- and diamond-rich nation for 38 years until 2017. (AP Photo/Paulo Duarte)
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