From BiblePortal Wikipedia

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [1]

in Roman mythology, was the goddess of union. She had a number of temples at Rome: one on the Capitoline Hill, rebuilt after having been burned to the ground under Constantine and Maxentius, the ruins of which are still shown. Another temple was built in consequence of a vow which L. Manlius had made in Gaul. A third was dedicated by Cn. Flavius, an aedile, during the Samanite war. Concordia appears on coins as a matron, sometimes standing and sometimes sitting, bearing in her left arm a cornucopia, sometimes an olive branch or a shell. Clasped hands are also her symbol.

The Nuttall Encyclopedia [2]

The Roman goddess of peace, to whom Camillus the dictator in 367 B.C. dedicated a temple on the conclusion of the strife between the patricians and plebeians.