Horse

Equine mammalian quadruped, semi-domesticated during pre-history as a source of transport and labour; can also provide milk, meat and leather. Relatively placid; tends to herd for mutual protection. Provides labour opportunities for farriers, saddlers, leather-workers (reins, stirrups etc.) and riders. Useful for knights to ride (it enables them to out-run the peasants easier).
Comes in two flavours: stallion and filly.There is also an'off cut' of stallion called gelding. Dont ask (if you have to) you wont want to go there!

Not normally eligible to become a landed or court noble, or archbishop. Possibly a good candidate for royalty, where there is a capable First Minister already in place.