Tsunayoshi is the 10th boss of the Vongola famiglia and is also known as “No Good Tsuna”. Tsuna develops from a weak individual who easily gives up to a leader who is dedicated and willing to fight for the protection of his friends, family and famiglia.
Giotto is the founder of the Vongola Famiglia and thus, the first boss. He is also the creator of the Zero Point Breakthrough technique which Tsuna was later on able to learn. He is considered to be the strongest Vongola Boss.