404. That’s an error.

The requested URL /bookmarks/mark?op=edit&bkmk=http%3A%2F%2Fdata.bnf.fr%2F12117843%2Fcharles_michel_d_irrumberry_de_salaberry%2F&title=Charles+Michel+d%27Irrumberry+de+Salaberry+%281778-1829%29 was not found on this server. That’s all we know.