In looking at the Oath of Horatii image
I can see three swords in the hand of the father, I see what looks to be a gladius in the center, but the two swords on either side of it do not look to be Roman swords. They resemble scimitars or some such similar sword, not what I would consider Roman. My impression of Roman swords tends to be the gladius and if they used other types I am not aware of them, so are the other two swords Roman?
I realize this painting is Neoclassical, although with many of the details look to be very accurate the swords stick out to me as being a sort of artistic license here; but I would like to confirm with anyone who has more knowledge of Roman swords.