Complex sentence: He has received most of his notoriety for his short-temper and excessive swearing and blaspheming shown in a 2004 anonymous Internet video that made him known all over Italy and around the world.
Split into simpler sentences: He has received most of his notoriety for his short-temper and excessive swearing and blaspheming. In 2004, he was the subject of an anonymous Internet video that made him known all over Italy and around the world.