The cousin of Spain’s King Felipe VI, Princess Maria Teresa passed away from coronavirus at the age of 86.

The announcement was made by her brother, through a post that read: “On this afternoon… our sister Maria Teresa de Borbon Parma and Borbon Busset, a victim of the coronavirus COVID-19, died in Paris at the age of eighty-six.”

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As a reminder, Princess Teresa was born on July 28, 1933. She pursued her studies in France and became a professor at Paris’ Sorbonne as well as a professor of Sociology at Madrid’s Complutense University. The princess was actively praised for her outspoken views and activist work, which led to her nickname the “Red Princess.”

Earlier this week, on March 25, the British tabloids reported that Prince Charles was tested positive for coronavirus.

“The Prince of Wales has tested positive for Coronavirus,” Clarence House said in a statement. “He has been displaying mild symptoms but otherwise remains in good health and has been working from home throughout the last few days as usual.”

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The Duchess of Cornwall has also been tested but does not have the virus,” Clarence House said. The Prince and his wife, Camilla, are self-isolating at home in Scotland.

“It is not possible to ascertain from whom the Prince caught the virus owing to the high number of engagements he carried out in his public role during recent weeks.”