Arthur I was 4th Earl of Richmond and Duke of Brittany between 1196 and 1203. He was the posthumous son of Geoffrey II, Duke of Brittany, and Constance, Duchess of Brittany. Through Geoffrey, Arthur was the grandson of Henry II, King of England and Eleanor of Aquitaine, and the nephew of King Richard I of England.
Duke of Clarence was a substantive title created three times in the Peerage of England. The title Duke of Clarence and St Andrews has also been created in the Peerage of Great Britain, and Duke of Clarence and Avondale and Earl of Clarence in the Peerage of the United Kingdom. The titles have traditionally been awarded to junior members of the English and British royal family, and all are now extinct.
The Duchy of Brittany was a medieval feudal state that existed between approximately 939 and 1547. Its territory covered the northwestern peninsula of Europe, bordered by the Atlantic Ocean to the west, and the English Channel to the north. It was also less definitively bordered by the river Loire to the south, and Normandy, and other French provinces, to the east. The Duchy was established after the expulsion of Viking armies from the region around 939. The Duchy, in the 10th and 11th centuries, was politically unstable, with the dukes holding only limited power outside their own personal lands. The Duchy had mixed relationships with the neighbouring Duchy of Normandy, sometimes allying itself with Normandy, and at other times, such as the Breton–Norman War, entering into open conflict.
Peter I, also known as Peter Mauclerc, was Duke of Brittany jure uxoris from 1213 to 1221, and regent of the duchy for his minor son John I from 1221 to 1237. As duke he was also 1st Earl of Richmond from 1218 to 1235.
Constance was Duchess of Brittany from 1166 to her death in 1201 and Countess of Richmond from 1171 to 1201. Constance was the daughter of Duke Conan IV by his wife, Margaret of Huntingdon, a sister of the Scottish kings Malcolm IV and William I.
Richmondshire was a local government district of North Yorkshire, England, from 1974 to 2023. It covered a large northern area of the Yorkshire Dales including Swaledale and Arkengarthdale, Wensleydale and Coverdale, with the prominent Scot's Dyke and Scotch Corner along the centre. Teesdale lay to the north. With a total area of 1,319 km2, it was larger than seven of the English ceremonial counties.
Earl of March is a title that has been created several times, respectively, in the Peerage of Scotland and the Peerage of England. The title derives from the "marches" or borderlands between England and either Wales or Scotland, and it was held by several great feudal families which owned lands in those districts. Later, however, the title came to be granted as an honorary dignity, and ceased to carry any associated power in the marches.
Eleanor, Fair Maid of Brittany, also known as Damsel of Brittany, Pearl of Brittany, or Beauty of Brittany, was the eldest daughter of Geoffrey II, Duke of Brittany, and Constance, Duchess of Brittany. Her father, Geoffrey, was the fourth son of Henry II, King of England.
Odo of Rennes, Count of Penthièvre, was the youngest of the three sons of Duke Geoffrey I of Brittany and Hawise of Normandy, daughter of Richard I of Normandy. Eudon married Agnes of Cornouaille, the daughter of Alan Canhiart, Count of Cornouaille and sister of Hoel II, Duke of Brittany who was married in 1066 to Eudon's niece Hawise, Duchess of Brittany.
Conan IV, called the Young, was the Duke of Brittany from 1156 to 1166. He was the son of Bertha, Duchess of Brittany, and her first husband, Alan, Earl of Richmond. Conan IV was his father's heir as Earl of Richmond and his mother's heir as Duke of Brittany. Conan and his daughter Constance would be the only representatives of the House of Penthièvre to rule Brittany.
Guy of Thouars was the third husband of Constance, Duchess of Brittany, whom he married in Angers, County of Anjou between August and October 1199 after her son Arthur of Brittany entered Angers to be recognized as count of the three countships of Anjou, Maine and Touraine. He was an Occitan noble, a member of the House of Thouars. He is counted as a duke of Brittany, jure uxoris, from 1199 to 1201.
Alix of Thouars ruled as Duchess of Brittany from 1203 until her death. She was also Countess of Richmond in the peerage of England.
John I, known as John the Red due to the colour of his beard, was Duke of Brittany from 1221 to his death and 2nd Earl of Richmond in 1268.
The now-extinct title of Earl of Richmond was created many times in the Peerage of England. The earldom of Richmond was initially held by various Breton nobles; sometimes the holder was the Breton duke himself, including one member of the cadet branch of the French Capetian dynasty. The historical ties between the Duchy of Brittany and this English earldom were maintained ceremonially by the Breton dukes even after England ceased to recognize the Breton dukes as earls of England and those dukes rendered homage to the King of France, rather than the English crown. It was then held either by members of the English royal families of Plantagenet and Tudor, or English nobles closely associated with the English crown. It was eventually merged into the English crown during the reign of Henry VII of England and has been recreated as a Dukedom.
The Percy family is an ancient English noble family. They were among the oldest and most powerful noble families in Northern England for much of the Middle Ages. The noble family is known for its long rivalry with the House of Neville, another family powerful in northern England during the 15th century. The feud between the two families, known as the Percy-Neville feud led to the Wars of the Roses, at the time known as the Civil Wars, in England.
Ranulf de Blondeville, 6th Earl of Chester and 1st Earl of Lincoln, known in some references as the 4th Earl of Chester, was one of the "old school" of Anglo-Norman barons whose loyalty to the Angevin dynasty was consistent but contingent on the receipt of lucrative favours. He has been described as "almost the last relic of the great feudal aristocracy of the Conquest".
Alan, 1st Earl of Richmond, Breton Alan Penteur, also known as "Alan the Black", was a Breton noble who fought for Stephen, King of England. Alan was the third son of Stephen, Count of Tréguier, and Hawise de Guingamp.
Bertha of Cornouaille, also known as Bertha of Brittany, was the Duchess of Brittany between 1148 until her death and Dowager Countess of Richmond. Bertha was the elder daughter of Conan III of Brittany by Maude, the illegitimate daughter of King Henry I of England. She was the last member of the Breton house of Cornouaille to reign over Brittany.
Margaret of Huntingdon was a Scottish princess and Duchess of Brittany. She was the sister of Scottish kings Malcolm IV and William I, wife of Conan IV, Duke of Brittany, and the mother of Constance, Duchess of Brittany. Her second husband was Humphrey de Bohun, hereditary Constable of England. Following her second marriage, Margaret styled herself as the Countess of Hereford.
Constance of Penthièvre was a Breton princess, daughter of Alan of Penthièvre, 1st Earl of Richmond, and Bertha of Cornouaille, suo jure Duchess of Brittany.
