Grumpy Cat, one of the internet’s most popular cats and one of its very first worldwide memes, has passed away at age 7.

The beloved meme star’s family made the announcement on Twitter today. “We are unimaginably heartbroken to announce the loss of our beloved Grumpy Cat,” the furry sensation’s owner Tabatha Bundesen wrote. “Despite care from top professionals, as well as from her very loving family, Grumpy encountered complications from a recent urinary tract infection that unfortunately became too tough for her to overcome. She passed away peacefully on the morning of Tuesday, May 14, at home in the arms of her mommy, Tabatha.”

Check out the full announcement below.
 

Grumpy Cat, whose real name was Tardar Sauce, had feline dwarfism, which likely is the cause of her distinctive grumpy face. She rose to stardom in September 2012 when her owner’s brother, Bryan, posted pictures of her on Reddit, which then reached 1,030,000 views in just 48 hours.

Rest in peace, Grumpy Cat.