Prabhupāda is not a title applicable only to Śrīla A. C. Bhaktivedānta Svāmī Prabhupāda or even to only Śrīla Bhaktisiddhānta Sarasvatī Gosvāmī Prabhupāda.
Uddhava said the gopis were the greatest devotees of Krsna. Similarly, in his adult life, Srila Puri Maharaja carried the message of krsna-bhakti to the world.