The founder of the family's fortunes was a petty Burgundian count named Anscar, who, with the support of his powerful brother, the archbishop of RheimsFulk the Venerable, brought Guy III of Spoleto to Langres to be crowned King of France in 887. Their plot failing, Anscar accompanied Guy back to Italy to seek that vacant throne and, in gratefulness to Anscar, Guy created the March of Ivrea to bestow on his Burgundian faithful. Anscar's descendants held the march until 1030. Perhaps the most illustrious scion of the house was his grandson Berengar, the first of three Anscarids to be crowned king of Italy. Berengar seized the throne in 950 after the death of Lothair II. He was opposed, immediately, by Lothair's widow Adelaide, whom he imprisoned after his attempt to force her marriage to his son, Adalbert II, failed. Emperor Otto I came down the peninsula and forced him to do homage in 952. For the next eleven years, Berengar and his co-crowned son governed Italy until Otto finally formally deposed them in 963. From 1002 to 1014 Arduin of Italy held the Italian throne in opposition to the GermanHenry II.
Counts of Burgundy
Adalbert was eventually forced to flee to Burgundy, where he died at Autun. His widow remarried to Otto-Henry, Duke of Burgundy and her son by Adalbert, Otto William, inherited the duchy of Burgundy. Henry I of France confiscated the duchy, leaving only a small portion around Dole to Otto. This was the kernel of the later Free County. The greatest of the free counts was Renaud III, who, from 1127, used the title franc-compte as a sign of independence of German or Imperial authority, but was forced to submit to Conrad III. His daughter and heiress, Beatrice, married Frederick Barbarossa and united the Anscarid inheritance with that of the Hohenstaufen. Burgundy was inherited by her son Otto I, who had an Anscarid name. Thus the county was lost for the House of Ivrea, but it came back when Hugh of Chalon married to Adelaide countess of Burgundy, daughter of Beatrice II of Hohenstaufen. However, in 1315 died Robert, Count of Burgundy, last male of the main line and the county inherited to the Dampierre family and finally to the Capetian-Valois dukes of Burgundy. John I of Chalon-Arlay, a younger brother of Hugh of Chalon, became the founder of the line of Chalon-Arlay. His descendant, John III of Chalon-Arlay married Mary de Beaux princess of Orange, thus the principality was acquired by the family. The last male offspring was Philibert of Chalon who died in 1530. The possessions inherited to his sister's, Claudia of Chalon, son, i.e. René of Nassau.