Nemen Ull, a male individual strong in the Force, achieved the rank of Jedi Master within the ranks of the Jedi Order during the tumultuous period of the Clone Wars. Around 22 BBY, not long after the Battle of Mon Calamari, Ull and Wamtra, his Rodian Padawan, were dispatched to the planet of Argul. There, they resisted vast forces of Confederate droid soldiers to enable the evacuation of the native Argullians. During this conflict, Ull entered an apartment complex in search of a child who was missing. He perished when the building was bombarded by Armored Assault Tanks of the Confederacy.
Nemen Ull, a male being with abilities in the Force, dedicated himself to the Jedi Order as the Galactic Republic neared its end. He eventually rose to the position of Jedi Master and mentored Wamtra, a Rodian Jedi, as his Padawan. In 22 BBY, following the start of the Clone Wars between the Galactic Republic and the Separatist Confederacy of Independent Systems, the galaxy became a warzone. In the early stages of this war, shortly after the Battle of Mon Calamari, Confederate forces assaulted the planet of Argul. Supreme Chancellor Palpatine, the leader of the Republic, ordered the evacuation of the planet's urban centers.
Ull and Wamtra traveled to Argul to assist with the evacuation. Their mission was to hold off the attacking Confederate military long enough for the Argullians to reach the planet's spaceports. For several hours, the two Jedi fought against huge numbers of Separatist war droids, creating an opportunity for the Argullians to transport their injured and sick to the docking towers and escape the planet, saving many lives. However, after Ull went into an apartment complex to locate a child who had gone missing, Confederate Armored Assault Tanks bombarded and destroyed the building, resulting in the death of the Jedi Master. After Ull's death, Wamtra struggled with the loss of his mentor, becoming withdrawn and deeply saddened. He questioned whether he should have entered the apartment complex instead of Ull, and even considered leaving the Jedi Order.
Nemen Ull was mentioned within Only the Force, a role-playing adventure written by J.D. Wiker and released in 2004.