What breed are you talking about? Belgium Booted bantams, Belgium D'anvers, And D'uccles Don't have a standard counter part.
Sorry, Barbu D'Anvers. All the Belgians are pretty tiny, so I'm sure you get the idea of how strange a Belgian looked with the large fowl hens.
In UK we have Sabelpoots...
On of my daughter's little Belgians grew up with our large fowl & was free ranging. He had his little harem including leghorns. We didn't hatch any eggs but he seemed to be doing his job.