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Female Petronilla de Lacy Click to view Petronilla de Lacy in the family tree

Petronilla was born about 1200 in Dublin, Ireland.  Petronilla's father was Walter de Lacy and her mother was Margaret de Braose.  Her paternal grandparents were Hugh de Lacy and Rohese de Monmouth; her maternal grandparents were William III de Braose and Maud de St. Valerie de Haye. She had a brother and two sisters, named Gilbert, Katherine and Egidia Giles.  She was the second oldest of the four children.  She died after November 25th, 1288.


Petronilla's first family with Ralph VI de Toeni

‌Petronilla and Ralph VI were married in a religious ceremony about 1233.  They had a son and a daughter, named Roger V and Constance.


Petronilla's second family with William de St. Omer

They had a son named Thomas de.

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