The sultani (Ottoman Turkish: سلطاني) was an Ottoman gold coin. It was first minted in 1477–8 during the reign of Mehmed II (r. 1451–1481), following the Venetian ducat standard,[1] weighing about 3.45 grams (0.111 ozt). The sultani is the classic Ottoman gold coin also known generically as altın (آلتون, "gold").