ČI don't know what Ormonde is

Peers are of five ranks: duke, marquess, earl, viscount and baron.
http://encyclopedia.thefreedictionary.com/Peerage

The rank, title, or jurisdiction of a peer or peeress; a duchy, marquisate, county, viscountcy, or barony.
http://dictionary.reference.com/search?q=peerage

http://humphrysfamilytree.com/Butler/