|Titles||Grand Duke of Oriente|
|Affiliation||Free Worlds League|
House Allison were the hereditary rulers of Oriente stretching back before the founding of the Free Worlds League. When the last member of the family was killed in 2845 the title was granted to House Halas.
Known members of the family
- Tomas Allison, President of the Federation of Oriente, 2241 - 2271.
- Kenneth Allison
- Antonia Allison, Duchess of Orients on 2301
- Thomas Allison, President of the Federation of Oriente, 2272 - 2290.
- Byron Allison, Duke 2575 to 2586 at least.
- Lambert Allison, grandson of Byron.
- Hektor Allison, Duke 2602 to 2639.
- Martin Allison, Duke 2700 to 2753.
- Carter Allison, Duke in 2804.
- Harlan Allison, Last scion of the family, killed in 2845.
- Marquis Kendal Allison, Brother of Harlan.
Family Heirlooms and Holdings
- House Marik (The Free Worlds League), p. 72, "Noble titles"
- Handbook: House Marik, p. 37
- Historical: Reunification War, p. 37
- Fall from Grace, c. 5
- Second Succession War (Sourcebook), p. 67
- The Star League, p. 59, "Famous Star League Gunslingers"