Yes. I think Lina is 5, Tosca 4 and Yrsa 3, but the question for us has been how he could manage an entire herd (I think 30 or so) on open pasture and not have trouble managing weight. There was every age there from foals to mares and one gelding in their teens. All appeared to be carrying a "normal" weight.
They had, by the way, no shelters either. There was a sturdy barn with stalls, but horses were only brought in if they needed some kind of special handilng. Nancy