| 21. | Boabdil was held prisoner here in 1483 until he promised to make Granada a tributary state.
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| 22. | Ruling over nearby tributary states often by appointing sons of the Kongo kings to head these states.
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| 23. | Due to its dominance during the 19th century Vietnam regards Cambodia and Laos as vassal tributary states.
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| 24. | In 1753 the tributary states of Cochin collectively known as Karappuram and Alangad were ceded to Travancore.
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| 25. | When Srivijaya in Chaiya extended its sphere of influence, those cities became tributary states of Srivijaya.
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| 26. | Ayotlan was a state prior to the Spanish incursion which had tributary states at Tlepantequipa and Tlaquitetequi.
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| 27. | According to some historians, Granada was a tributary state to the Kingdom of Castile since that year.
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| 28. | However, the Lanna Kingdom was weakened and became a tributary state of the Taungoo Dynasty in 1558.
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| 29. | Radwan and Tancred frequently came into conflict, until Tancred reduced Aleppo to a tributary state in 1111.
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| 30. | Tributary states, usually on the periphery of the Ottoman Empire, were under vassalage in different forms.
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