Can you identify these (possibly) LEGO horses? We got these old LEGO-compatible horses from the LEGO collection that used to belong to my wife's brothers (which means they are probably 20-30 years old). I'm wondering if they are genuine LEGO pieces. 

If not, I wonder what brand are they.

Either way, I wonder which set, if any, they belonged to.







I think there was another black horse, which I couldn't find, and some or all of them also had a brown saddle part.

EDIT:

I managed to take a good photo of the stamp on the black horse, so it's definitely genuine LEGO.
Those horses look like legit LEGO-brand horses. 

Specifically:

White Horse with Black Eyes, White Pupils and Dark Orange Bridle Pattern: 4493c01pb04



Black Horse with Black Eyes Circled with White, Brown Bridle Pattern: 4493c01pb02



In order to be extra sure they are genuine LEGO, look for the "LEGO" stamp on the inside of the hollow studs on their back where the saddle goes (it's a little hard to see).

These horses each came in a fair number of sets. Check the BrickLink links for a list of possible sets. If you are sure they both came in the same set, these are the sets both came in:


5394-1
6021-1
6042-1
6055-1
6073-1
6074-1
6080-1
6081-1
6085-1
6086-1
6090-1
6095-1
6419-1
6761-1
6762-1
6769-1
8777-1
10039-1
10176-1