House of Plessis
- Coat of Arms
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House of Plessis
Lords of La Chaise and Périgny
Ancient arms -
House of Plessis
Lords of La Chaise, Périgny, La Perrine, Ouschamps and Savonnières
- Cadet Branches
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House of Plessis-La Perrine
Lords of La Perrine and Ouschamps
Issued from Charles du Plessis, 3rd son of Jean du Plessis, Lord of Périgny and La Perrine -
House of Plessis-Périgny
Lords of Périgny, Bertault and Sarcelles
Issued from Pierre du Plessis, 5th son of Jean du Plessis, Lord of Périgny and La Perrine -
House of Plessis-Liancourt
Lords of Liancourt
Counts of Beaumont-sur-Oise
Marquises of Guercheville
Issued from Guillaume, 7th son of Jean du Plessis, Lord of Périgny and La Perrine -
House of Plessis-Savonnières
Lords of Savonnières and La Buzelière
Issued from Luculus, 2nd son of Jean du Plessis, Lord of La Perrine and Ouschamps
Cadets of La Perrine branch -
House of Plessis-Asnières
Lords of Asnières, La Grange-Rouge and Bézieux
Issued from Jean, 3rd son of Pierre du Plessis, Lord of Périgny
Cadets of Périgny branch
- Personal Arms
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Roger du Plessis
Lord of Lianoucrt
Count of Beaumont and Duretal
Marquis of Guercheville
Duke of Rocheguyon