Tao Trio

The Dragon Trio is the three Legendary Pokémon that appear in that have their own games (Pokemon Diamond & Pearl/Pokemon Platinum), and their own movies (The Rise of Darkrai/Giratina and The Sky Warrior/Arceus and the Jewel of Life) Their names are:

Dialga (Steel/Dragon)

Palkia (Water/Dragon)

Giratina (Ghost/Dragon)

Their are some people that think their are "Pokemon Kings". Well their are Dialga and Palkia that where kings #1, then came King #2 (with is Giratina) and the last king till now is Arceus.