Maria Martinez, along with her husband Julian Martinez, was a renowned Native potter known for creating the "black-on-black" style of pottery in the 20th century. She learned pottery-making from her aunt Nicolasa Montoya and went on to revolutionize the economy of San Ildefonso Pueblo through her unique pottery style. Maria collaborated with various family members, including her daughter-in-law Santana and son Popovi Da, producing exceptional pieces that are highly regarded in the art world. She also worked with her grandson Tony Da, who became a prominent potter and artist in his own right. Maria's legacy is celebrated in several books and museum exhibitions worldwide.