The husband of two-time Olympic Gold medalist Justyna Kowalczyk has died following an avalanche in the Swiss Alps, officials confirmed this week. He was 38. 

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

Justyna Kowalczyk competes in the FIS Nordic World Ski Championships in 2017

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

"He was the most beautiful Person in the world," Kowalczyk wrote in a Facebook post on Thursday. 

MOUNTAINEERS WHO DISAPPEARED NEAR AMERICA'S HIGHEST PEAK BELIEVED DEAD

Tekieli, who was a climbing instructor, last posted a picture 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 Feb. 19, 2015, in Falun, Sweden. (Stanko Gruden/Agence Zoom/Getty Images)

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

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

Justyna Kowalczyk during FIS Nordic World Ski Championship in 2019

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

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She won gold in the same event at the next Olympics in 2010 and then her second gold in the 10km individual in Sochi in 2014. 

The Associated Press contributed to this report.