| 41. | One of their daughters, John Foster and was created Viscountess Ferrard in 1797.
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| 42. | In October 1748, a ball was held at Dublin Castle by the Viscountess Petersham.
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| 43. | The Viscountess Bridgeman died in December 1961.
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| 44. | In the Conservatives, after the retirement of her predecessor Nancy Astor, Viscountess Astor.
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| 45. | The same year, her husband was created Viscount Simon and she became Viscountess Simon.
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| 46. | The Viscountess Hereford died in February 1864.
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| 47. | In 1196, the Viscountess Hospitallers orders.
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| 48. | The Viscountess Downe died in April 1812.
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| 49. | The Viscountess Downe died in March 1867.
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| 50. | The Viscountess Cross died in April 1976.
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