[1] The second son of Count Otto of Savoy and Margravine Adelaide of Turin, Amadeus II was probably born around 1050, because he, alongside other noblemen of the Kingdom of Burgundy, swore an oath on the tomb of Saint Peter in Rome to defend the Church around 1070–73.
In 1074 Pope Gregory VII was trying to persuade William I, Count of Burgundy, to remember this vow and, with Amadeus and others, go to the defence of the Roman Empire in the East against the Seljuk Turks.
[2] One document, issued by his widowed daughter Adelaide in 1090, refers to him as "count and margrave" (comes et marchio), but it is probably anachronistic.
"[5] This shows, by the absence of the regnal year of the emperor, that despite his involvement in the reconciliation at Canossa, Amadeus II was neutral in the wider Investiture Controversy and the wars against Henry IV that it caused in Germany.
[6] This date must be at least approximately correct, since Adelaide made a monastic donation for the benefit of the souls of her sons Margrave Peter and Count Amadeus on 8 March.