Overview
Margrave Philip of Hachberg-Sausenberg (1454 – 9 September 1503) was the son of the Margrave Rudolf IV of Hachberg-Sausenberg and Margaret of Vienne. Philip reigned in 1487–1503 as Margrave of Hachberg-Sausenberg and Count of Neuchâtel. From 1466 he called himself Lord of Badenweiler.
Family
As part of his alliance with France, Philip married Maria of Savoy, daughter of Amadeus IX of Savoy, and one of the nieces of Louis XI, King of France, around 1476 or 1478. With Philip's death, the male line of the Hachberg-Sausenberg family died out.
Philip's father, Rudolf IV, had begun negotiations with the senior line of the House of Zahringen (of which Rudolf's Hachberg-Sausenberg line was a cadet branch), which ruled the margraviate of Baden on the possibility of an inheritance treaty. Philip continued the negotiations with Christopher I, Margrave of Baden and on 31 August 1490, they came to an agreement on reciprocal inheritance. The treaty is known as the "Rötteln Match". The background of this treaty was that Christopher I intended his son and heir Philip I to marry Joan, the heiress of Hachberg-Sausenberg. This marriage did not materialize, due to political pressure from the French king.
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