Anna Isabella Louisa Lievertas (26 August 1751 - 2 January 1795) was a Libertas princess and consort of King Adrian II. She was born to King Robert IV of Libertas and Isabella, daughter of Luis Fernández, Spanish Duke of Medinaceli.
Anna was married to Adrian II on 12 June 1771, following the death of his first wife. Anna was a very ambitious woman and despite not have the ideal marriage with a stricken Adrian, was very close to him and held some sway in court. She and Adrian would have one child, Martin. While Martin would not amount to king of Brunant unless Prince Ambroos were to die, she orchestrated a move to get support for her son replacing the aging King Alexander III in Libertas, who was childless. Though the queen died in 1795, Alexander would do so in 1799 and the Libertan nobles chose her son as king.