Watch StreamingCommunity. The passion that Joan of Castile, daughter of the Catholic Kings and heir to the throne, feels for her husband, Philip the Handsome, sovereign of the Netherlands and son of Maximilian of Austria and Mary of Burgundy, is not reciprocated. Her temperament, her jealousy and an unexpected tragedy will throw Joan into the dark realm of madness and obsession with death, the only realm where she will be a true queen…