House of Lacy
- Coat of Arms
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House of De Lacy
Lords of Weobley, Ludlow and Meath
- Cadet Branches
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House Lacy of Lincoln
Lords of Halton, Pontefract and Bowland
Matrilineal branch
- Personal Arms
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Walter de Lacy
Lord of Meath
Magna Charta surety -
Hugh de Lacy
1st Earl of Ulster
