The term 'Roman Domestic God' refers to the Roman god LAR, who was the guardian of the home and family. He was believed to protect the family from harm and bring good luck. He was also associated with fertility and abundance. LAR was often depicted as a bearded man wearing a toga and holding a staff or a patera, a shallow dish used for libations. He was worshipped in the home and at the crossroads, and his festivals were celebrated on March 1st and June 15th.