House of Lara
Teresa married Juan Núñez I de Lara around 1270 after his first wife, Teresa Álvarez de Azagra died. Juan Núñez was the head of the House of Lara after the death of his father Nuño González de Lara "el Bueno" in 1275. He also held title of lordship over Lerma, Amaya, Dueñas, Palenzuela, Tordehumos, Torrelobatón and the Castle of La Mota and inherited the title of Lord of Albarracín from his first wife and held all these titles until his death in 1294.