Caitanya-caritāmṛta 2.120
caitanya-gosāñira ei tattva-nirūpaṇa svayaṁ-bhagavān kṛṣṇa vrajendra-nandana
[chaitanya-gosaanira ei tattva-niroopana svayam-bhagavaan krishna vrajendra-nandana]
Blended reading (Sanskrit + English inline)
caitanya-gosāñira ei tattva-nirūpaṇa svayaṁ-bhagavān kṛṣṇa vrajendra-nandana
The conclusion is that Lord Caitanya is the Supreme Personality of Godhead, Kṛṣṇa, the son of the King of Vraja.
My note
Source: vedabase.io