Aloisia Wagner (1905 or 1906 - c. 1940), better known by her stage name Violetta, was a German-American woman who was born without legs or arms with a condition known as tetra-amelia syndrome.

On March 23, 1924, she left her birth city of Bremen-Hemelingen, Germany, with her stepbrother and manager, Karl Grobecker, aboard the SS George Washington, which arrived in New York on April 3, 1924.

[2] According to the ship manifest, Aloisia had blonde hair and green eyes, was 3 feet tall, and was allowed into the U.S. for 25 weeks to work for Samuel W. Gumpertz in his Dreamland Circus Side Show.

[5] According to his biography, Jean Cocteau visited Violetta at Luna Park, Paris in 1927, describing her as "a stubborn German woman.

Stort also stated that Violetta was married and wore her wedding band on a gold chain around her neck, though no other information about her husband is known.