The Alaunt Gentil, or as the Spanish named it, Lebrel de presa Alano, the Spanish Bulldog was not considered as a court dog, but, the Lebrel de Presa Alano (Alaunt Gentil).
I'd have to disagree, the gentil was a racier hound, as you see with the white dogs below-
I'd suggest if anything that dog being depicted is an alaunt boucheries, like a classic Alano espanol. Such dogs were crossed with greyhounds to make gentils, or bull lurchers as we know them today.
