Please accept my humble obeisances.
All glories to Srila Prabhupada.
As per the guru parampara, Gaudiya Vaishnava comes from the linage of Madhvacarya. So if Gaudiya Vaishnavism is part of Madhva Sampradya why is there so many philosophical differences between them. For example Madhvacarya believed in absolute difference between soul and Krishna but we believe in simultaneous oneness and difference. Madhvacarya also believed that Narayan is the source of all incarnation but we believe in Krishna as svayam bhagavan.