Though much of the credit for the founding of Balhae went to his son, many historians still give credit to Dae Jung-sang as the main supporter and leader in the founding of Balhae.
Meskipun banyak kredit dalam pembentukan Balhae diberikan kepada putranya, namun banyak sejarawan yang masih memberikan kredit kepada Dae Jung-sang sebagai pendukung utama dan pemimpin di dalam pembentukan Balhae.