Odo II was the Count of Troyes in 876. He was a son of Odo I and Wandilmodis.

Little is known of this count. His father had the county of Troyes confiscated by Charles the Bald

Charles the Bald

Charles the Bald , Holy Roman Emperor and King of West Francia , was the youngest son of the Emperor Louis the Pious by his second wife Judith.-Struggle against his brothers:He was born on 13 June 823 in Frankfurt, when his elder...

 in 858, but whether he recovered it (circa 866) is uncertain, as are the circumstances of Odo's appointment. He may have inherited it from his father or been nominated by the king. He inherited some possessions in the region of Châteaudun

Châteaudun

Châteaudun is a commune in the Eure-et-Loir department in northern France. It is a sub-prefecture of Eure-et-Loir.-Geography:Châteaudun is located about 45 km northwest of Orléans, and about 50 km south-southwest of Chartres, on the river Loir, a tributary of the...

 and some historians have retrospectively called him "Count of Châteaudun."

By a charter dated 25 October 876, Charles the Bald ceded Chaource

Chaource

Chaource is a commune in the Aube department in north-central France.Highlights: church .A cheese is named after this village. See Chaource cheese.-Population:-External links:*...

, in Tonnerre

Tonnerre

Tonnerre is a commune in the Yonne department in Burgundy in north-central France.-Twin town:* Nenagh, North Tipperary, Ireland-References:*...

, to Robert

Robert I, Count of Troyes

Robert I , called Porte-carquois, was the Count of Troyes. He was a son of Odo I, Count of Troyes, and Wandilmodis.Lay abbot of Saint-Loup, he was mentioned for the first time on 25 October 874, when he appeared in a charter of Charles the Bald ceding Chaource, in Tonnerre, to the abbey. He...

and Odo. Robert was probably Odo's brother and successor.