Adelaide of Tours was a daughter of Hugh of Tours

Hugh of Tours

Hugh was the count of Tours and Sens during the reigns of Charlemagne and Louis the Pious, until his disgrace in February 828. He was probably a son of Count Haicho of the House of the Etichonen....

 and his wife Bava.

She married first Conrad I, Count of Auxerre

Conrad I, Count of Auxerre

Conrad I the Elder was the count of several counties, most notably the Aargau and Auxerre, around Lake Constance, as well as Paris from 859 to 862/4. He was also the lay abbot of Saint-Germaine in Auxerre. Conrad's father was Welf....

 with whom she had two children, Hugh

Hugh the Abbot

Hugh the Abbot was a member of the Welf family, a son of Conrad I of Auxerre and Adelaide. After his father's death, his mother apparently married Robert the Strong, the margrave of Neustria. On Robert's death in 866, Hugh became the regent and guardian for Robert's sons, Odo and Robert.Hugh...

 and Conrad the Younger

Conrad II, Duke of Transjurane Burgundy

Conrad II the Younger was the Count of Auxerre from 864 until his death. He was a son of Conrad I of Auxerre, and Adelaide; an older brother of Hugh the Abbot; and a member of the Bavarian branch of the Welfs....

.

After his death she probably married Robert the Strong

Robert the Strong

Robert IV the Strong , also known as Rutpert, was Margrave in Neustria. His family is named after him and called Robertians. He was first nominated by Charles the Bald missus dominicus in 853. Robert was the father of the kings Odo and Robert I of France. Robert was the great-grandfather of Hugh...

, whose children Odo and Robert I of France

Robert I of France

Robert I , King of Western Francia , was the younger son of Robert the Strong, count of Anjou, and the brother of Odo, who became king of the Western Franks in 888. West Francia evolved over time into France; under Odo, the capital was fixed on Paris, a large step in that direction...

 are perhaps hers. Since Robert was born in 866, well after her first husband died, he is more likely to be her offspring. His grandson was Hugh Capet, the first King of the House of Capet

House of Capet

The House of Capet, or The Direct Capetian Dynasty, , also called The House of France , or simply the Capets, which ruled the Kingdom of France from 987 to 1328, was the most senior line of the Capetian dynasty – itself a derivative dynasty from the Robertians. As rulers of France, the dynasty...

.