Hugh Welf the Abbot was born on an unknown date to Conrad I de Bourgogne (c800-863) and Adelaide of Tours (820-866) and died 886 of unspecified causes.
Children
| Name | Birth | Death | Joined with |
| Petronilla (825-?) | 825 | Tertullus of Anjou (?-?) | |
Hugh was a general, abbot of Saint-Germain d'Auxerre, and archbishop of Cologne.
Petronilla may be his daughter, or the daughter of Hugh, son of Charlemagne.