The twice husband olympic gold medalist Justyna Kowalczyk died after an avalanche in the Swiss Alps, authorities confirmed this week. She was 38 years old.

Kacper Tekieli, who married Kowalczyk in 2020 and with whom they share a 20-month-old son, was killed in an avalanche, said the Polish Mountaineering Support Foundation.

Justyna Kowalczyk competes at the FIS Nordic World Ski Championships on March 2, 2017 in Finland. (Photo Olimpik/NurPhoto via Getty Images)

«She was the most beautiful person in the world,» Kowalczyk wrote in a Facebook post Thursday.

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Tekieli, who was a climbing instructor, last posted a photo on Facebook from inside Konkordia the Hut in Fiescherthal, Switzerland, on Tuesday.

Justyna Kowalczyk during the FIS Nordic World Ski Championships in 2015

Justyna Kowalczyk during the FIS Nordic World Ski Championships on February 19, 2015, in Falun, Sweden. (Stanko Gruden/Zoom Agency/Getty Images)

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He had previously climbed Makalu, the fifth highest mountain in the world.

Kowalczyk is a Polish cross-country ski medalist. He won bronze in the 30 km freestyle in 2006, Poland’s first Olympic medal in cross-country skiing.

Justyna Kowalczyk during the FIS Nordic World Ski Championships in 2019

Justyna Kowalczyk attends the FIS Nordic World Ski Championships on February 21, 2019 in Seefeld, Austria. (Trond Tandberg/Getty Images)

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He won gold in the same event at the next Olympic Games in 2010 and then his second gold in the individual 10km in Sochi in 2014.

Associated Press contributed to this report.

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