Board Thread:Theories and Speculation/@comment-26894845-20151212061943/@comment-732150-20151213135854

Obito is NOT a direct descendant of Madara. Way too many people don't check for proper translations. What Obito said is only that Madara is an ancestor, in a way that he's a previous generation Uchiha. Madara has never been implied to have descendants, and since all his siblings weren't known to have children as well, Madara is at most nth cousin n-times removed to ever other posterior Uchiha.