who is rochanagarbha, arjun's son

i had seen mentions of arjun's son rochanagarbha got killed in war on 12th day by bhagadutta, i read somewhere subhadra's another name was rochana so does that mean arjun-subhadra had one more son other than abhimanyu? rochanbhaga was not abhimanyu because he was killed before abhimanyu

I have no clue but whatever info U have provided is good