Gogo Mastrokosta, the former television personality and fitness instructor who became one of Greece’s most recognizable pop-culture icons of the 1990s, has died at 56 after a long battle with cancer.

Her death was confirmed early Monday by her daughter, Victoria, in a moving social media post. Mastrokosta had been hospitalized at Evangelismos Hospital in Athens, where local media reported she had been in critical condition and unconscious for the past two weeks.

Born in 1970 in a small village near Messolongi, on the western bank of the Evinos River, Mastrokosta rose to national prominence in 1995 on Mega TV. With her long blonde hair, athletic physique, and vibrant on-screen energy, she quickly became Greece’s definitive television aerobics instructor and a major sex symbol of the era. Her programs drew massive ratings, and she became a staple on the covers of the country’s top lifestyle magazines.

As her career evolved, Mastrokosta branched out into singing, acting, and fashion design, remaining at the forefront of Greek show business throughout the late 1990s and early 2000s.

In 2008, shortly after giving birth to Victoria, Mastrokosta was diagnosed with breast cancer. Two years later, in 2010, she married former Greek soccer player Traianos Dellas, one of the heroes of Greece’s historic Euro 2004 triumph.