CC Madhya 16.108

aiche tāṅhāre kṛpā kaila gaurarāya
“pratāparudra-santrātā” nāma haila yāya
Synonyms: 
aiche — such; tāṅhāre — unto the King; kṛpā — mercy; kaila — showed; gaurarāya — Śrī Caitanya Mahāprabhu; pratāparudra-santrātā — the deliverer of Mahārāja Pratāparudra; nāma — the name; haila — became; yāya — by which.
Translation: 
Śrī Caitanya Mahāprabhu showed such mercy to the King that from that day on the Lord became known as Pratāparudra-santrātā, the deliverer of Mahārāja Pratāparudra.