Stonestar was the leader before Waterstar. When Waterstar was his deputy his name was Wavesplash. Before Stonestar was Blackstar. When Stonestar was the deputy his name was Stoneheart. Before Blackstar was Wavestar the first leader. When Blackstar was leader his name was Blackfur. Look at The Dawn of Wavestar to see how Waveclan became Waveclan.
Thanks to Erin hunter.
