The Deeds of the Dukes of Normandy

The Gesta Normannorum Ducum [The Deeds of the Dukes of Normandy] is a landmark medieval chronicle tracing the rise and fall of the Norman dynasty from its early roots through the pivotal events surrounding the Norman Conquest of England. Originally penned in Latin by the monk William of Jumièges shortly before 1060 and later expanded at the behest of William the Conqueror, the work chronicles the deeds, politics, battles, and leadership of the Norman dukes, especially William’s own claim to the English throne. The narrative combines earlier historical sources with firsthand information and oral testimony to present an authoritative account of Normandy’s transformation from a Viking settlement into one of medieval Europe’s most powerful realms. William’s history emphasizes the legitimacy, military prowess, and governance of the Norman line, framing their expansion, including the conquest of England, as both divinely sanctioned and noble in purpose. Later chroniclers such as Orderic Vitalis and Robert of Torigni continued the history, extending the coverage into the 12th century, providing broader context on ducal rule and its impact. Today this classic work remains a foundational source for understanding Norman identity, medieval statesmanship, and the historical forces that reshaped England and Western Europe between 800AD and 1100AD.

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Biography of Maredudd ab Owain King Deheubarth King Powys King Gwynedd -999

Paternal Family Tree: Aberffraw

Maredudd ab Owain was born to [his father] Owain King Deheubarth.

In 950 [his grandfather] Hywel "Dda aka Good" King Seisyllwg King Deheubarth (age 70) died. His son [his father] Owain succeeded King Deheubarth.

Around 984 Maredudd ab Owain succeeded King Deheubarth.

In 986 Maredudd ab Owain succeeded King Powys, King Gwynedd.

In 986 Cadwallon ab Ieuaf King Gwynedd was killed by Maredudd ab Owain .

Around 987 [his father] Owain King Deheubarth died.

Around 999 Maredudd ab Owain died.

[his daughter] Angharad ferch Maredudd was born to Maredudd ab Owain . She married (1) Cynfyn ap Gwersytan Mathrafal and had issue (2) in or before 1013 Llywelyn ap Seisyll King Gwynedd King Powys King Deheubarth and had issue.

Royal Ancestors of Maredudd ab Owain

Kings Gwynedd: Great x 2 Grand Son of Rhodri ap Mervyn "The Great" King Gwynedd

Kings Seisyllwg: Grand Son of Hywel "Dda aka Good" King Seisyllwg King Deheubarth

Kings Powys: Great x 4 Grand Son of Cadell ap Brochfael King Powys

Royal Descendants of Maredudd ab Owain
Number after indicates the number of unique routes of descent. Descendants of Kings and Queens not included.

Bleddyn ap Cynfyn King Gwynedd King Powys [1]

Gruffydd ap Llywelyn King Wales [1]

Gwladys ferch Rhiwallon Mathrafal Queen Consort Deheubarth [1]

Ancestors of Maredudd ab Owain

Great x 4 Grandfather: Gwriad ap Elidyr Aberffraw

Great x 3 Grandfather: Merfyn "Frych aka Freckled" King Gwynedd

Great x 4 Grandmother: Esyllt Anglesey

Great x 2 Grandfather: Rhodri ap Mervyn "The Great" King Gwynedd

Great x 1 Grandfather: Cadell ap Rhodri King Seisyllwg

Great x 3 Grandfather: Meurig King Seisyllwg

Great x 2 Grandmother: Angharad Seisyllwg Queen Consort Gwynedd

GrandFather: Hywel "Dda aka Good" King Seisyllwg King Deheubarth

Father: Owain King Deheubarth

Maredudd ab Owain King Deheubarth King Powys King Gwynedd