In addition to being honoured greatly in the epigraphy, the Mother Goddesses are also widely evidenced in the imagery from the Continent and Britain.352 If the mother-goddess can be represented as a single figure, she is often duplicated, tripled, quadrupled or even quintupled. The triads of mothers are in fact the most widespread representations. It seems that the Mothers started being depicted as such from the end of the 1st c. AD.353
Paulys, vol.14.2, pp. 2237-2242 ; LIMC, Suppl., vol. 8.1, pp. 808-816 ; Deyts, 1992, pp. 58-72 ; Green, 2001, pp. 188-205.
Carré, 1978, p. 123.