Seven large clans Parthes or Seven Large Houses (in Persian " Haft Khandan") at the court Parthian and Sassanide were noble houses. They were noble the closest to the King of the Kings .

• the House of Aspahapet, Apartvaticene (Yazd)

• the House of Dahae, Astabene (Kuchan)
• the House of Karen, Hyrcanie (Gorgan)
• the House of Mihran, Comisene (Semnan)
• the House of Parni, Parthyene (Parthaunis)
• the House of Sohae, Margiane (Merv)
• the House of Suren, Sakestan (Sistan)

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