Parentalia
In ancient Rome, the Parentalia (Latin pronunciation: [parɛnˈtaːlɪ.a]) or dies parentales ([ˈdɪ.eːs parɛnˈtaːleːs], "ancestral days") was a nine-day festival held in honour of family ancestors, beginning on 13 February. Although the Parentalia was a holiday on the Roman religious calendar, its observances were mainly domestic and familial.