Australian model Lucy Markovic, a star of "Australia's Next Top Model," has died of a rare brain condition, her representatives announced Thursday.

Fashion model Lucy Markovic, who first gained popularity as a competitor on "Australia's Next Top Model" before professionally modeling for luxury brands including Givenchy and Versace, has died. Elite Model Management NYC,

"Her smile and laughter could light up a room," Markovic's agency, Elite Model Management, wrote in a tribute on Instagram