The desire to conquer the Earth, Immortality, and the means to which he goes to create the Ten-Tailed beast.
Madara Uchiha but the worst criminal would be Sasuke
Obito Uchiha was his brother.obito-tobi.......haha it makes some sense, i forgot about the uchiha clan
Sasuke Uchiha and Madara Uchiha
Madara is by far the strongest. If Itachi was stronger he would've killed madara himself.
No
No, Madara Uchiha is the leader of the Uchiha Clan. Obito is merely a member and he is dead.
It has not been revealed in the Naruto manga or anime if Madara Uchiha dies.
He had at least five brothers. Four were killed in battle, when Madara was still a child. He also had a younger brother, Izuna Uchiha.
Uchiha Madara was a highly skilled ninja who lived years previously. He helped lead the Uchiha clan and was one of the founders of Konoha. He also trained Itachi. Madara helped Itachi with the Uchiha Clan Massacre.
No
The author never revealed if Madara Uchiha married anyone.
Tobi is Madara Uchiha in Tobi's form!! Obito Uchiha is dead and completely unrelated besides the fact that he is an Uchiha too.