What are the highly hierarchical deep space mission, those where one thing deploys the next which deploys the next... after leaving cis-lunar space.
An example would be Tianwen-1 where a Mars orbiter deployed a Mars lander which then deployed a Mars rover which then deployed a stand-alone selfie cam.
Ultimate goal is to find out if Tianwen-1 wins as the highest order hierarchical deployment and/or if it was the first third-order hierarchical deployment in deep space.
Answers can be any mission with two or more hierarchical deployments that take place in deep space.
UPDATE - I should have been clearer in the beginning
I've emphasized above that the deployments must happen in deep space; beyond cis-lunar. I also want to emphasize that for a while at least all four Tianwen-1 participants (orbiter, lander, rover, selfie-cam) functioned independently of each other. While linked electronically, one did not "shed" or discard the previous. There were four "generations" alive and active at the same time.
Answers that are more like staging are still welcome, but emphasis should focus on this hierarchy of active craft if possible.