Agnes was the daughter of Raoul VI de Beaumont.
After the death of her brothers she inherited from her paternal grandfather Richard I of Beaumont, and was viscountess of Beaumont. She married, prior to the death of Richard, Louis of Acre, third son of John of Brienne, King of Jerusalem, and Berenguela of Leon.
Agnes and Louis helped the monks of the Priory of Vivoin to expand their enclosure, 1254, confirmed them, in 1258, the pension of 100 soil bequeathed by her father Raoul de Beaumont, and the religious of Perseigne everything they had in their stronghold, 1259. They assigned on the provostship of the Lude annuities that received the Abbey of Étival-en-Charnie on the Provost of leased, 1280.
They had five children
Jeanne married Guy VIII de Laval
Marie married Henri III D'Avaugour, baron de Mayenne. The first family of the Viscounts of Maine is now extinct.
Isabelle married John de Vesci, of Alnwick
Henry de Beaumont 4th Earl of Buchan and suo jure 1st Baron Beaumont, he married Alice Comyn, daughter of Alexander Comyn and Joan le Latimer
Marguerite de Brienne
After the death of her brothers she inherited from her paternal grandfather Richard I of Beaumont, and was viscountess of Beaumont. She married, prior to the death of Richard, Louis of Acre, third son of John of Brienne, King of Jerusalem, and Berenguela of Leon.
Agnes and Louis helped the monks of the Priory of Vivoin to expand their enclosure, 1254, confirmed them, in 1258, the pension of 100 soil bequeathed by her father Raoul de Beaumont, and the religious of Perseigne everything they had in their stronghold, 1259. They assigned on the provostship of the Lude annuities that received the Abbey of Étival-en-Charnie on the Provost of leased, 1280.
They had five children
Jeanne married Guy VIII de Laval
Marie married Henri III D'Avaugour, baron de Mayenne. The first family of the Viscounts of Maine is now extinct.
Isabelle married John de Vesci, of Alnwick
Henry de Beaumont 4th Earl of Buchan and suo jure 1st Baron Beaumont, he married Alice Comyn, daughter of Alexander Comyn and Joan le Latimer
Marguerite de Brienne
Agnes was the daughter of Raoul VI de Beaumont.
After the death of her brothers she inherited from her paternal grandfather Richard I of Beaumont, and was viscountess of Beaumont. She married, prior to the death of Richard, Louis of Acre, third son of John of Brienne, King of Jerusalem, and Berenguela of Leon.
Agnes and Louis helped the monks of the Priory of Vivoin to expand their enclosure, 1254, confirmed them, in 1258, the pension of 100 soil bequeathed by her father Raoul de Beaumont, and the religious of Perseigne everything they had in their stronghold, 1259. They assigned on the provostship of the Lude annuities that received the Abbey of Étival-en-Charnie on the Provost of leased, 1280.
They had five children
Jeanne married Guy VIII de Laval
Marie married Henri III D'Avaugour, baron de Mayenne. The first family of the Viscounts of Maine is now extinct.
Isabelle married John de Vesci, of Alnwick
Henry de Beaumont 4th Earl of Buchan and suo jure 1st Baron Beaumont, he married Alice Comyn, daughter of Alexander Comyn and Joan le Latimer
Marguerite de Brienne
After the death of her brothers she inherited from her paternal grandfather Richard I of Beaumont, and was viscountess of Beaumont. She married, prior to the death of Richard, Louis of Acre, third son of John of Brienne, King of Jerusalem, and Berenguela of Leon.
Agnes and Louis helped the monks of the Priory of Vivoin to expand their enclosure, 1254, confirmed them, in 1258, the pension of 100 soil bequeathed by her father Raoul de Beaumont, and the religious of Perseigne everything they had in their stronghold, 1259. They assigned on the provostship of the Lude annuities that received the Abbey of Étival-en-Charnie on the Provost of leased, 1280.
They had five children
Jeanne married Guy VIII de Laval
Marie married Henri III D'Avaugour, baron de Mayenne. The first family of the Viscounts of Maine is now extinct.
Isabelle married John de Vesci, of Alnwick
Henry de Beaumont 4th Earl of Buchan and suo jure 1st Baron Beaumont, he married Alice Comyn, daughter of Alexander Comyn and Joan le Latimer
Marguerite de Brienne
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