John was born shortly before or after the death of his father and passed his early days at the Bohemian court and the town of Brugg in the Swabian home territory of the Habsburgs, where he is mentioned as titular duke in a 1294 deed.
John was born shortly before or after the death of his father. John passed his early days at the Bohemian court in the Swabian home territory of the Habsburgs. John passed his early days at the town of Brugg in the Swabian home territory of the Habsburgs. He is mentioned as titular duke in a 1294 deed.