Larentalia
The Larentalia was a festival celebrated on 23rd December in honor of Acca Larentia, the nurse of Romulus and Remus. Associated with the Lares, domestic deities, the Larentalia was a time to honor both Acca Larentia and the Lares, and offer sacrifices to the dead.
Date: 23rd December
Deity: Acca Larentia
Observances: Sacrifices to the dead
The sacrifices to the dead were typically made at altars dedicated to Acca Larentia. The Velabrum, the spot where Acca Larentia was buried, was a common location for these sacrifices.
Originally a single-day event, Augustus later mandated that it be observed twice a year.
Digital Maps of the Ancient World 