Pierre-Gustave-Eugène Staal (Vertus, 2 September 1817–Ivry, 19 October 1882), was a French artist and draughtsman.
Margaret, Countess of Vertus (1406–1466), married Richard of Brittany, Count of Étampes
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Valentina Visconti (1368 – died 4 December 1408) was a sovereign Countess of Vertus, and a duchess consort of Orléans as the wife of Louis de Valois, Duke of Orléans, the younger brother of Charles VI of France.
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After her mother, she was the sovereign Countess of Vertus from 1372, a title she shared with her spouse.
Only four villages are located on the actual Côtes des Blancs slope, namely Avize, Cramant, Le Mesnil-sur-Oger and Oger but all municipalities between Cuis and Bergères-les-Vertus have their vineyards on the côtes.
Richard of Brittany (1395 – 2 June 1438, Château de Clisson), Count of Benon, Étampes, and Mantes, married in 1423 Margaret d'Orléans, Countess of Vertus, daughter of Louis of Valois, Duke of Orléans
On 27 June 1474, at Clisson, she married Francis II, Duke of Brittany (1435–1488), son of Richard of Brittany (1395–1438), Count of Étampes (1421–1438), and of Margaret d'Orléans (1406–1466), Countess of Vertus (b. 1423).