Cella trichora, Church ruin in Óbuda, Budapest, Hungary

Cella trichora is a burial chapel built around 360 AD in Aquincum, now Budapest District III, at the crossing of Raktár, Körte and Hunor streets. Only its foundations and those of the Roman buildings around it remain, low walls of rough grey stone; the 1964 restoration merely marks the altar's place.

Built around 360 AD, this chapel marks a period when early Christian burial practices were replacing traditional Roman customs in Pannonia. This shift reflects the religious transformation taking place across the region.

The chapel demonstrates how early Christians adapted Roman building methods to create spaces for their burial rituals and religious observances.

The site is accessible by tram and bus to the Óbudai rendelőintézet stop. Wear sturdy footwear since you will be walking on uneven ground and ancient foundations.

Work done in 1964 marked the original altar location, allowing visitors to understand how the interior was organized. This conservation effort made the chapel's religious function clearly visible.