The eagle is used in heraldry as a charge, as a supporter, and as a crest. The eagle with its keen eyes symbolized perspicacity, courage, strength and immortality, but is also considered “king of the skies” and messenger of the highest gods.

The depiction of the heraldic eagle is subject to a great range of variation in style. The eagle was far more common in continental European—particularly German—than English heraldry, and it most frequently appears Sable (colored black) with its beak and claws Or (colored gold or yellow)



Speaking of a [European king], there’s a distinctly European heraldic symbol on this door, with the kanji for king.

Whatever’s going on here, it suggests something very grand at the least.