Ibrahim was the Sultan of the Ottoman Empire from 1640 to 1648 AD. He was born in Istanbul to Ahmed and Valide Kosem Sultan.

Early in his reign under the guidance of the Grand Vizier Kamankes Kara Mustafa Pasa, Ibrahim established peaceful relations with Persia and Austria and recovered the Sea of Azov. Having spent his early life in confinement, Ibrahim was mentally unstable. He was later called Ibrahim the Mad by 20th-century historians due to his reputed mental condition.

Under his reign, gold, silver, and copper coins were issued in the denomination of Akce, Beshlik, Mangir, Onluk, and Para. The above shown silver Beshlik (5 Para) was issued during his reign from Constantinople mint. The obverse of a coin depicted the legend ‘As Sultan Ibrahim Ibn Ahmed Han’. On the other hand, the reverse of a coin has legend ‘Duriba bi Konstantiniyye’ with AH date. Image Source: Heritage Auctions