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Father: Hon-Frederic Sydney C. Trench
Born:
Marr: 1867
Died:
Mother: Lady-Anne Le Poer Trench
Born:
Died: 1924
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Father: Col-Robert Ashworth G. Cosby
Born:
Marr:
Died:
Mother: Alice Sophia E. Pocock
Born:
Died:
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 | Frederic Oliver Trench 
Born: 2 FEB 1868 - 3rd.Baron Ashtown
Marr: 11 JAN 1894 - Stradbally Hall, Co. Limerick
Died: 20 MAR 1946 -
Other Spouses:
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 | Violet Grace Cosby 
Born: -
Died: UNKNOWN -
Other Spouses:
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 | 1. Lt-Hon-Frederic Sydney Trench Born: 9 DEC 1894 - Marr: - Died: 16 NOV 1916 - |  | 2. Hon-Grace Mary Trench Born: 7 MAY 1896 - Marr: - Died: 18 JAN 1975 - |  |
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 | 3. Robert Power Trench  Born: 27 APR 1897 - 4th. Baron Ashtown Marr: 1950 - Oonah Anne Green-Wilkinson Died: 3 NOV 1966 - |  | 4. Hon-Arther Cosby Trench Born: 3 JUL 1899 - Marr: - Died: 29 NOV 1918 - |  |
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 | 5. Dudley Oliver Trench  Born: 11 JUL 1901 - 5th.Baron Ashtown Marr: 1955 - Sheelah A. S. Green-Wilkinson (other spouses) Died: 19 AUG 1979 - |  |
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