| 41. | He succeeded his father in the viscountcy in 1671.
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| 42. | Since 1889 the title has been a subsidiary title of the viscountcy of Cobham.
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| 43. | For more information on this creation of the viscountcy, see the latter title.
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| 44. | The marquessate, earldom and viscountcy became extinct.
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| 45. | His cousin Frederick Hamilton succeeded to the viscountcy.
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| 46. | His sons John both succeeded in the viscountcy.
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| 47. | He died in March 1800, aged 57, when the viscountcy became extinct.
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| 48. | There is no heir to the viscountcy.
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| 49. | The viscountcy became extinct on his death.
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| 50. | An uninhabited stellar system containing a planet that can be terraformed is deemed a viscountcy.
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