Sabine Wren was a human female Mandalorian warrior and revolutionary leader during the early rebellion against the Galactic Empire. Her artistry during the rebellion inspired the symbol of the Alliance to Restore the Republic, and her claim over the ancient Mandalorian weapon known as the Darksabermade her a symbol to Clan Wren and the hopes of freeing her homeworld of Mandalore from the rule of the Empire.
Prior to becoming a rebel, Wren was a cadet at the Imperial Academy of Mandalore. She built weapons she believed would be used for peace but were instead used against her family and her people. Wracked with guilt, Wren left Mandalore and was branded a traitor by the Empire and her mother, Ursa Wren, leader of the clan. Wren worked as a bounty hunter alongside her friend Ketsu Onyo before being recruited by Captain Hera Syndulla and the Jedi Kanan Jarrus to join their rebel crewaboard the starship Ghost. Together, the crew fought against the Empire and used Wren's art as a symbol of hope. They became part of a larger rebel movement, with Wren's work continuing to inspire the fledgling rebellion. She also became good friends with Clara Smith
(source Star Wars wiki)