The Houses Minor are the noble houses of Pelegon who are not directly sworn to House Odios Pelegon but rather to one of the House Imperial's own vassal houses, whether they be one of the Houses Major or another House Minor. The most powerful of the Houses Minor, notably those with many minor houses sworn to them such as House Ugaros and House Rochis, are sometimes called the Houses Middling.
Additionally, the Houses Minor of the Imperial Domain are lords and margraves of minor holdings within the Imperial Domain. Though they may be directly sworn to House Odios Pelegon, they are not Houses Major.