Geoffroi de Dinan, vicomte de Dinan

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  1. Alan de Dinan Lord Dinan

2. Oliver De Dinan II Viscount de Dinan

Quoting (with minor copyediting) Laurent and Yoshiko Ohier's 1999 reconstruction of the Dinan lineage at the soc.genealogy.medieval forum:

Geoffroy I, vicomte of Dinan, d. 1123, married Ozio "Radegonde Orieldis".

Geoffroy and Ozio had:

1. Olivier II, d. 1155, Vicomte of Dinan-nord (1123), m. 1096 Agnoree de Penthievre, daughter of Etienne de Penthievre and Havoise de Guingamp. They are said to have at least 8 sons, but I know only 2 of them. They are the ancestors of the Dinan-nord lineage.

2. Alain I, d. 1157, vicomte of Dinan-Becherel. ---

“The Dinhan family clearly did not participate in the Conquest… the Dinans, as Michael Jones has stressed, are not known to have come to England with William [the Conqueror], and are absent from the Domesday Book. Nevertheless, by 1212, the monks of the priory of Saint-Malo at Dinan were claiming (erroneously) that one of the two Devonshire manors granted to them by Geoffrey [I] de Dinan in 1122 had been granted to Geoffrey by William I, and in 1238 Geoffrey of Dinham himself made a similar claim regarding the hundred of Hartland.

"The first evidence of Dinans in Britain is a grant to the abbey of Marmoutier (located near Tours, but with significant Breton interests), dated 1122, of two Devon manors, Harpford and Nutwell, for the support of the priory of Saint-Malo at Dinan ‘which I hold as a gift from King Henry [I]’ from Geoffrey [I] of Dinan, his wife Orieldis, and their son Oliver [II]. Jones has argued convincingly that the Dinans came in the twelfth century as part of part of Henry I’s ‘new men,’ a class consciously created with ‘interests… predominantly English', and pointed to the Marmoutier charter’s explicit mention of Henry I’s official patronage. The sole pipe roll of Henry I shows the holdings of two of the three sons of Geoffrey [I] of Dinan: those of Oliver [II] are in Devonshire; those of Alain (lord of Becheral and often styled ‘de Dinan-Becheral’) are in Bedfordshire, Cambridgeshire, Cornwall, Dorset, Hamshire, Hertfordshire, Huntingtonshire, and Northamptonshire. A third son, Josselin, seems to have come to prominence later, the only one of the three brwww.celtic-casimir.com

Geoffroy DE DINAN
Born: Abt 1065, Dinan, Ille-et-Vilaine, Bretagne, France
Died: 1138

Another name for Geoffroy was Geoffrey DE DINHAM.

Marriage Information:
Geoffroy married Radegonde DE NERONDES. (Radegonde DE NERONDES was born about 1069 in Nerondes, Cher, Berry/Centre, France and died in 1147.)
others to intervene actively in the struggle between Stephen and Matilda (on Matilda’s side)."[1]