His eldest son, Nanfan, Lord Coloony, succeeded to the earldom on his death, his second son, Richard, succeeded in turn as 3rd earl on his elder brother's death.
His eldest son succeeded to the earldom on his death succeeded in turn as 3rd earl on his elder brother's death. His second son was his eldest son. This eldest son was succeeded to the earldom on his death. Richard was his second son. Lord Coloony was nanfan. Lord Coloony was his eldest son.