With the full name franz bonaventura adalbert maria herzog von bayern its no wonder hes simply known by the duke of bavaria after spending his childhood in nazi camps he became the pretender to the now non existent throne of bavaria but he now also claims the thrones of england scotland ireland and france. Perkin warbeck circa 1474 23 november 1499 was a pretender to the english throne during the reign of king henry vii of england traditional belief claims that he was an impostor pretending to be richard of shrewsbury 1st duke of york the younger son of king edward iv of england but was in fact a fleming born in tournai around 1474. Wilhelm accepted the nomination in july 1918 and adopted the regnal name mindaugas ii during the subsequent german revolution however the council withdrew its decision in november 1918 and wilhelm was never crowned his grandson wilhelm albert duke of urach is the head of the family since 9 february 1991. Here are twelve facts about this pretender to the english throne 1 he was the second of two pretenders in henry viis reign henry vii had already been challenged by a previous pretender in 1487 lambert simnel who claimed to be edward plantagenet