| The West Saxon kings used Kent as a sort of appanage to be ruled as subkingdoms by West Saxon princes. |
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| It is impossible to divide the first two subkingdoms according this principle and we can consider that there is only one type in each of them. |
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| After their discovery, the kingdom of Protista was then latter subdivided into subkingdoms. |
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| In the five-kingdom system, DNA sequence data are the basis for the subkingdoms Archaea and Eubacteria in kingdom Bacteria. |
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| Other characteristics are also clear, depending on the subkingdoms, which follow. |
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| These were typically ruled together by the head of the family and sometimes treated as appenage subkingdoms. |
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| The kingdom of Essex grew by the absorption of smaller subkingdoms or Saxon tribal groups. |
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