・Hachirao is a place where a Seminário (seminary) was set up twice between 1588 and 1595, during which it was moved to Kazusa.
・Christian gravestones are located on part of the higher ground called “terayashiki.” In the community graveyard, there are four gravestones, including those moved here from nearby private houses.
・They comprise one peculiar column-like flat gravestone placed horizontally on the ground, one flat gravestone with a slight arch in the rear body, placed horizontally on the ground, and two gravestones, each of which features a single structure of a foundation stone and a gravestone.