In 981 [her grandfather] Hoël Poher I Duke Brittany died. His son [her father] (age 2) succeeded I Duke Brittany.
In 1004 [her father] (age 25) died. His son [her brother] succeeded Count Nantes.
Around 1020 [her future husband] Alan Canhiart Count Cornouaille succeeded Count Cornouaille.
Around 1026 Alan Canhiart Count Cornouaille and Judith Poher Countess Cornouaille and Nantes were married. She by marriage Countess Cornouaille. She the daughter of . He the son of and Guigoëdon Vannes (age 46).
Around 1031 [her son] Hoël Canhiart II Duke Brittany was born to [her husband] Alan Canhiart Count Cornouaille and Judith Poher Countess Cornouaille and Nantes.
In 1051 died. His aunt Judith Poher Countess Cornouaille and Nantes succeeded Countess Nantes.
In 1058 [her husband] Alan Canhiart Count Cornouaille died. In 1058 His son [her son] Hoël Canhiart II Duke Brittany (age 27) succeeded V Count Cornouaille.
In or before 1063 [her son] Hoël Canhiart II Duke Brittany (age 32) and [her daughter-in-law] Hawise Penthièvre Countess Cornouaille were married. She by marriage Countess Cornouaille. He by marriage II Duke Brittany. The date based on the birth of their first child Alan Canhiart IV Duke Brittany in 1063. She the daughter of Alan Penthièvre III Duke Brittany and Bertha Blois Duchess Brittany 1005-1080 (age 57). He the son of Alan Canhiart Count Cornouaille and .
On 27 Feb 1063 Judith Poher Countess Cornouaille and Nantes died.
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