Ceremony on June 11th, day of Matralia for Mater Matuta. Worship of MM was for univirae. Also dies natalis of Fortuna Virgo temple, prob next to MM temple. Had a mysterious cult statue to which girls gave little togas. Livia was honouring Concordia's role in married life rather than political accord.
Literature often has concordia as an ideal of marriage.
L restored other temples, in order to imitate Aug's temple restoration programme acc Ovid. She wove and made Aug's clothes. Accompanied him on his travels. Priestess of Divus Augustus. Appears on Tiberius's coins as e.g. Salus Augusta.