Kevin Patrick Mostyn Family - Person Sheet
Kevin Patrick Mostyn Family - Person Sheet
NameWilliam DE BRAOSE Lord Of Brecknock, 23G Grandfather
FatherReginald DE BRAOSE (~1182-1228)
MotherGracia DE BRIWERE (1186-1223)
Spouses
1Eva MARSHAL, 23G Grandmother
FatherWilliam MARSHAL 4th Earl Of Pembroke (1146-1219)
MotherIsabel DE CLARE Countess Of Pembroke (~1174-1220)
Web Notes notes for William DE BRAOSE Lord Of Brecknock
Weis" "Ancestral Roots. . ." (66:28), (67:28), (68:28), (177:8), (253:29). Cokayne's "Complete Peerage", (Abergavenny, p.22), (Zouche, p.938).
William is best known for his relationship with LLYWELYN THE GREAT, Prince of Aberffraw. In 1229 William's daughter, Isabel, was married to LLYWELYN's son, Dafydd. Says John Davies in his book, "A History of Wales" : "So great was the desire of the de Breos family to ally with the prince that the uncle, the brother, and the daughter of William de Breos married members of the house of Aberffraw. [editorial note : this is not quite accurate. William's relatives who married into the house of Aberffraw were : 1.- John de Braose, the son of William's uncle, also named William, who married LLYWELYN's daughter, MARGARET; 2.- William's father, REGINALD, who married, as his second wife, GWLADYS DDU, another of LLYWELYN's daughters; and of course, 3.- his daughter Isabel.] Yet the relationship between the two families did not prevent LLYWELYN from hanging William de Breos in 1230 for excessive familiarity with JOAN [Llywelyn's wife]. The hanging was an audacious act and the lack
of reaction to it is proof of the power of LLYWELYN and the intensity of the desire of William's sons-in-law to obtain their share of his possessions, for William was the last of his branch of the de Breoses." Note also the oddity that both William's step mother (GWALDYS DDU) and his son-in-law (Dafydd) were children of LLYWELYN.
William succeeded his father as Lord of Abergavenny, Builth and other Marcher Lordships in1227. Styled by the Welsh as "Black William" he was imprisoned by Llewelyn ap Iorwerth in 1229 during Hubert de Burgh's disastrous Kerry (Ceri) campaign. He was ransomed and released after a short captivity during which he agreed to cede Builth as a marriage portion for his daughter Isabella on her betrothal to David, son and heir of Llewelyn. The following Easter, Llewelyn discovered an intrigue between his wife, Joan, and William. Supported by a general clamour for his death, Llewelyn had William publicly hanged on 2nd May 1230.
William is best known for his relationship with LLYWELYN THE GREAT, Prince of Aberffraw. In 1229 William's daughter, Isabel, was married to LLYWELYN's son, Dafydd. Says John Davies in his book, "A History of Wales" : "So great was the desire of the de Breos family to ally with the prince that the uncle, the brother, and the daughter of William de Breos married members of the house of Aberffraw. [editorial note : this is not quite accurate. William's relatives who married into the house of Aberffraw were : 1.- John de Braose, the son of William's uncle, also named William, who married LLYWELYN's daughter, MARGARET; 2.- William's father, REGINALD, who married, as his second wife, GWLADYS DDU, another of LLYWELYN's daughters; and of course, 3.- his daughter Isabel.] Yet the relationship between the two families did not prevent LLYWELYN from hanging William de Breos in 1230 for excessive familiarity with JOAN [Llywelyn's wife]. The hanging was an audacious act and the lack
of reaction to it is proof of the power of LLYWELYN and the intensity of the desire of William's sons-in-law to obtain their share of his possessions, for William was the last of his branch of the de Breoses." Note also the oddity that both William's step mother (GWALDYS DDU) and his son-in-law (Dafydd) were children of LLYWELYN.
William succeeded his father as Lord of Abergavenny, Builth and other Marcher Lordships in1227. Styled by the Welsh as "Black William" he was imprisoned by Llewelyn ap Iorwerth in 1229 during Hubert de Burgh's disastrous Kerry (Ceri) campaign. He was ransomed and released after a short captivity during which he agreed to cede Builth as a marriage portion for his daughter Isabella on her betrothal to David, son and heir of Llewelyn. The following Easter, Llewelyn discovered an intrigue between his wife, Joan, and William. Supported by a general clamour for his death, Llewelyn had William publicly hanged on 2nd May 1230.