The office of sultan is currently held by Sultan Ibrahim Ismail Ibni Almarhum Sultan Iskandar Al-Haj, who was proclaimed as the 25th Sultan of Johor on 23 January 2010 and crowned on 23 March 2015 at the Istana Besar, Johor Bahru. His father, Sultan Iskandar Al-Haj ibni Almarhum Sultan Ismail Al-Khalidi, a great-grandson of Sultan Abu Bakar died on 22 January 2010; the death was announced that night. Ibrahim Ismail, The Tunku Mahkota of Johor (Crown Prince of Johor), was appointed as Acting Sultan of Johor on the same day.