Final answer:
The white marble bust next to the subject in the portrait of Jean-Baptiste Belley represents Victory.
Step-by-step explanation:
The white marble bust next to the subject in Anne-Louis Girodet's portrait of Jean-Baptiste Belley represents Victory.
In art, a white marble bust often symbolizes victory and triumph. This symbolism can be traced back to classical antiquity, where marble was frequently used to create sculptures of victorious individuals and deities. The white color of the marble also signifies purity and beauty, further reinforcing the idea of victory.
In the context of Jean-Baptiste Belley's portrait, the presence of the white marble bust next to him suggests his achievements and triumphs, highlighting his success and significance.