Long ago, the tragedy occurs in Johor Lama that nowadays called Kota Tinggi. Sultan Mahmud were going to the Mosque with his fellow and suddenly Laksamana Bentan hold him and stabbed at Sultan Mahmud at the belly. Sultan Mahmud before die, he cursed the child of Laksamana Bentan for not to step their foot in Kota Tinggi for 7 generation and fall to his death.