Given this paragraph about Grumpy Cat, tell me the cat's real name.

Tardar Sauce (April 4, 2012[1] – May 14, 2019), nicknamed Grumpy Cat, was an American Internet celebrity cat. She was known for her permanently "grumpy" facial appearance, which was caused by an underbite and feline dwarfism.[1][2][3] She came to prominence when a photograph of her was posted on September 22, 2012, on social news website Reddit by Bryan Bundesen, the brother of her owner Tabatha Bundesen.[1][4] "Lolcats" and parodies created from the photograph by Reddit users became popular. She was the subject of a popular Internet meme in which humorously negative, cynical images were made from photographs of her.[5]

Grumpy Cat was actually a nickname for the famous internet celebrity meme cat. Her real name was Tardar Sauce.