Brambleclaw from the warrior cat series is the son of a murderer and traitor so he has had to prove his loyalty many times over, his sister Tawnypelt when she was still an apprentice ran away from Thunderclan and went to Shadowclan her father's clan, tired of all the Thunderclan cats thinking she's not loyal. Even after her father died she stayed in Shadowclan. Brambleclaw was eventually chosen as Deputy, and when the great Firestar died in The Great Battle Brambleclaw was renamed Bramblestar and became the new leader of Thunderclan. (( Click photo to see the whole picture ))