Chatur Vyuha

The original form of the Supreme Lord is considered not different from the Lord's direct expansions. For this reason it is considered that Lord Chaitanya Mahaprabhu, the son of Shrimati Sachi-devi, is non-different from His expansion Lord Vasudeva, the first member of the Chatur-vyuha.

https://aitanya.blogspot.com

In the same way Shri Vishvarupa is considered non-different from the incarnation Lord Sankarshana, the second member of the Chatur-vyuha.

http://satcitant.blogspot.com/search/label/Visvarupa

Lord Pradyumna, the third member of the Chatur-vyuha, had formerly appeared in Vrajabhumi  as a close (priya-narma-sakha) friend of Shri Shri Radha-Madhava, where he helped in Their transcendental pastimes. That same Lord Pradyumna appeared in Lord Chaitanya's pastimes as Shri Raghunananda Thakura, who was non-different from both Lord Chaitanya and Lord Advaita.

https://spiritualpalace.blogspot.com/search/label/Raghunandana

Lord Aniruddha, the fourth member of the Chatur-vyuha, appeared in Lord Chaitanya's pastimes as Vakreshvara Pandita. Lord Krishna personally entered Vakreshvara's body and caused Him to dance in ecstasy. This ecstatic dancing of Vakreshvara Pandita delightes Lord Chaitanya Mahaprabhu.

https://aitanya.blogspot.com/search/label/Vakresvara


Source
https://gaudiyahistory.iskcondesiretree.com/sri-gaura-ganoddesha-dipika/