
After recovering, Cornelia joins the celebration with the tribe, but it is suddenly cut short when Caesar is shot by Koba and falls from his home into the jungle below, leaving Cornelia and Blue Eyes devastated. However, Ellie cures Cornelia with antibiotics, much to her husband and her eldest son's relief. Later, Caesar is heartbroken when he learns that his wife has contracted an infection, crying while he and his sons remain at her side. This is proven when he remains at her side and comforts her after a difficult childbirth while they also celebrate the birth of their youngest son. He loves her very deeply and is very affectionate towards her.

Raising a rebellious son and an infant, and ruling an empire are quite stressful for Caesar, but he has Cornelia's constant support and is grounded by her presence. During Caesar's rise to power, Cornelia earns his respect with her compassion toward both apes and humans, her knowledge of the outside world, and ultimately, her acquiescence of the king. Over time, Caesar and Cornelia grew close and became mates, and raise two sons, Blue Eyes and Cornelius. After the battle on the Golden Gate Bridge, Caesar, Cornelia and the remaining apes became free to begin their new lives in the wild. He, along with his fellow apes, infiltrates Gen-Sys and rescues her and the other incapacitated apes. After Dodge's death, Caesar discovers that Cornelia has been taken to Gen-Sys for experimentation and is greatly concerned about her welfare.

Caesar and Cornelia first meet during their captivity at the shelter.
