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Birth:          ABT 1030 Mortimer-sur-Eaulne, Normandy
Death:          ABT 1080 Saint-Victor-en-Caux. Normandy

Notes
https://en.wikipedia.org/wiki/Roger_of_Mortemer
Roger I of Mortemer (Roger de Mortemer, Roger de Mortimer, Roger Mortimer) (bef. 
990 [1] - aft. 1078), founded the abbey of St. Victor en Caux[2] in the Pays de Caux of 
Upper Normandy as early as 1074 CE.[3] Roger claimed the castle built by his kinsman 
William FitzOsbern, 1st Earl of Hereford, that was situated on the river mouth of 
Eaulne in Mortemer, Seine-Maritime. This castle was the chief barony of Roger's 
descendants.[4] He was the first Norman ancestor to assume the name Mortimer,[2] as 
in the place-name Morte-mer-en-Brai, the land on which the village and castle was 
located.[1]
Background[edit]

Castle in Mortemer[edit]

In 1054, the territory of Évreux was invaded by French armies led by Odo, the brother 
of King Henry I of France.[2] In response, Duke William II of Normandy sent his 
general Roger "fili Episcopi", along with other commanders, to oppose Odo’s forces. 
They met at the castle in Mortemer, Seine-Maritime where the battle of Mortemer 
ensued.[5] Roger was victorious against Odo, with Guy Comte de Ponthieu taken 
prisoner. Roger then took possession of the castle in Mortemer and assumed its name. 
However, his hold on the property was short lived due to a breach of duty to Duke 
William.[4] Roger had entertained an enemy of the Duke,[3] who was a French 
operative known as Count Ralph III “the Great”.[4] Count Ralph was Roger’s father-in-
law,[6] and thus gave the Count shelter for three days at his castle in Mortemer until 
he was able to safely return to his own territories. Upon discovering the news that 
Roger was providing safe haven for an enemy, Duke William banished Roger from 
Normandy and confiscated his possessions, giving them to his nephew, William de 
Warenne.[4] Eventually, Roger was pardoned by the Duke, but was never able to 
retain the castle in Mortemer.[7] It wasn’t until Roger’s son, Ranulph de Mortemer, 
was able to repossess the property by grant of Duke William. He is last seen in a 
document dated between 1078 and 1080.[8]

Family[edit]

The origin of Roger of Mortemer has been subject to much scholarly debate. Only two 
early sources provide information. Orderic Vitalis calls William de Warenne 
consanguineo ejus (his cousin/kinsman), while Robert de Torigny confusingly provides 
three different versions of his parentage that, though inconsistent, all make him either 
brother or son, of William de Warenne. Historian Thomas Stapleton would identify him 
with Roger filius Episcopi (bishop's son), who was child of Hugh, bishop of Coutances, 
and he makes Rodulf de Warenne another son of Hugh, thus making Roger de 
Mortimer uncle of William de Warenne. However, L. C. Loyd showed that the two 
Rogers were distinct, and that Radulf, though related to Roger filius Episcopi, was not 
his brother. Loyd points to a Rogeri filii Radulfi de Warethna (Roger, son of Rodulf de 
Warenne) who appears in a pair of charters from the 1040s. Loyd was hesitant to 
connect them because William de Warenne was thought to have been son of this 
Rodulf, but evidence indicates he was not Roger's brother.[9] However, Katherine 
Keats-Rohan has concluded that two Rodulfs were mistakenly combined into one, and 
that Roger was son Rodulf (I) de Warenne and his wife Beatrice, while William de 
Warenne was his nephew, son of Rodulf (II) and Emma, and as this removes many of 
Loyd's concerns, she identifies Roger de Mortimer with Roger, son of Rodulf.[10] C. P. 
Lewis calls this hypothesis the "most plausible" solution.[8] Robert de Torigny would 
Roger's mother, whom is not named, one of the nieces of Gunnora, Duchess of 
Normandy. This would seemingly make Beatrice that niece. Keats-Rohan identifies her 
with a later widow, Beatrice, daughter of Tesselin, vicomte of Rouen.[10]

Roger married Hadewisa, a Lady who inherited the Mers-les-Bains on the river mouth 
of Bresle and the district of Vimeu. Her father might have been Ralph III "The Great", 
Count of Amiens.[3] Roger and Hadewisa had at least three children: Ranulph, Hugh, 
and William.

wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jweber&id=I04793

Parents
DE WARENNE Rodulf (Ralph) I (ABT 1001 - AFT 1074)
DE VASCOEUIL Beatrice (Beatrix) (ABT 1003 - )

Siblings
DE MORTIMER Roger (ABT 1030 - ABT 1080)
DE WARENNE William I (ABT 1045 - 24 Jun 1088)

Marriage To OF VALOIS Hawise (ABT 1032 - )
    m.  

Notes

Parents
OF VEXIN Raoul II (ABT  985 - 1060)
DE BRETEUIL Adele (ABT  992 - 11 Sep 1051)

Children by OF VALOIS Hawise ABT 1032 - 
DE MORTIMER Ranulph (Ralph) (ABT 1058 - ABT 1104)

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