 The texts of these newly discovered panels contain important historical information about political events in the Classic period; one of the panels (Hieroglyphic Staircase 2, Block 5) contains a reference to 4 Ahau 3 K'ank'in, the notorious 13th baktun-ending.Research focuses on the relationship between the powerful kingdom of Calakmul and La Corona.A famous sculpted panel (now in the Dallas Museum of Art) depicts two large palanquins each carrying a royal woman from Calakmul, one standing in a temple pavilion, the other overshadowed by a supernatural protector; the text, however, refers to three women who came from Calakmul's ruling dynasty to marry the kings of La Corona.