The Cornulier family is an originating in Brittany. It was recognized in 1668 as a family of ancient nobility on the basis of a documented lineage dating back to 1487. Some authors have suggested an earlier origin, tracing it to 1380 and linking it to the House of Cornillé, although this connection has not been conclusively demonstrated.
The Cornulier family was notably established in the County of Nantes, particularly in Nozay, Anetz, and Saint-Herblon. It produced several mayors of Nantes and was primarily oriented toward judicial careers rather than military service, providing several presidents ÃÂ mortier to the Parliament of Brittany.
According to a tradition reported by Haillan, historiographer of France and genealogist of the Order of the Holy Spirit, the Cornulier family originally bore the name Cornillé and was said to descend from the former lords of the parish of Cornillé in the diocese of Rennes.
According to tradition, the family is said to descend from a figure named Grégoire de Cornillé, who around 1380 was allegedly authorized by Duke John IV of Brittany to modify his coat of arms and to adopt the name Cornulier in place of Cornillé.
According to genealogical tradition, Grégoire de Cornillé had a son, Guillaume, residing in the parish of Mécé, who appears under the name Cornillé in the inquiry of 1427 and under that of Cornulier in 1429.
Guillaume's son, Guillaume II de Cornillé, who died before 1498, had three sons: Yves de Cornillé, a man-at-arms in the royal ordinances in 1501; René de Cornillé, secretary to François de Laval, Baron of Châteaubriant, and churchwarden of Saint-Jean-de-Béré in 1546; and Pierre, generally identified with Pierre Cornulier, regarded as the ancestor of the extant Cornulier family.
noted that, in the Généalogie de la maison Cornulier published in 1863, Ernest de Cornulier sought to establish a direct descent of the family from the Mécé branch of the Cornillé family, based on a change of name and coat of arms, presenting this hypothesis as probable in the absence of conclusive evidence.
observed that the hypothesis of a common origin between the Cornulier and Cornillé families has been accepted with reservations by several historians of Breton nobility. He also noted that seventeenth-century judgments confirming nobility, together with the works of Lainé and Potier de Courcy, trace the Cornulier lineage to Pierre Cornullier, sieur de la Haudelinière, active in the late fifteenth century. According to Ernest de Cornulier-Lucinière, this individual may correspond to Pierre, the third son of Guillaume II de Cornillé, though this identification remains debated.
Reliable records of the Cornulier family exist from the late fifteenth century onward.
The family developed into two main branches, whose members were confirmed in the nobility of ancient extraction on 17 November 1668, based on a documented lineage dating to 1487.
According to in Catalogue de la noblesse française subsistante (2007), the Cornulier family is recognized as belonging to the , without any associated noble title for the surviving branch.
The Cornulier family joined the (ANF) in 1946.
In the early modern period, members of the House of Cornulier were:
The family arms are blazoned: D'azur, au rencontre de cerf d'or, surmonté entre son bois d'une moucheture d'hermine d'argent (Azure, a stag's head caboshed Or, surmounted between its antlers by an ermine spot Argent).
The principal marriage alliances of the Cornulier family are with: (1594), de la Noue (1604), (1620), du Bois de la Ferronnière (1627), de Charette (1635), (1663 and 1766), de Trémereuc (1702), de Boislève (1719), de Montmorency (1718), du Dresnay (1740), de Saint-Pern (1787, 1788, 1815), du Merdy de Catuélan (1756, 1765), de Monti (1817), de (1824), de Mauléon (1844), Le Doulcet de Méré (1847), dâÂÂOilliamson (1802, 1898), Daniel de Boisdenemets (1877), de Cussy (1869), de , Desfriches-Doria (1799), de Lespinay (1810, 1833), de (1903), Boux de Casson (1707, 1870), de Becdelièvre (1735), de Kerméno (1628), du Bourblanc (1767), du Bahuno du Liscoët (1793), de Vélard (1866), de Couétus (1835, 1860), de (1838), du Couédic (1871), de (1863), (1846), du (1908), among others.