Question: What is the date of birth of Reginald I, Count Of Bar's father?
Sentence (from "Theodoric I, Count of Montbéliard"): Theodoric I  (ca. 1045 – 2 January 1105) was a Count of Montbéliard, Count of Bar and lord of Mousson (as Theodoric II) and Count of Verdun.
Relevant evidence: Yes