Hugo was the son of Anselm von Nagold but his mother is unknown. The date and place of his birth have not been found.
His wife is not known. They were married, but the date and place have not been found. Their only known child was Hugo II (?-<1120).
| Attribute | Date | Description | Details | Source | Multimedia | Notes |
|---|---|---|---|---|---|---|
| Nobility Title | FROM 1078 TO 1079 | graf von Tübingen | ||||
| Nobility Title | mitstifter von Blaubeuren |