The Tsar Bell (Царь–колокол; ), also known as the Tsarsky Kolokol, Tsar Kolokol III, or Royal Bell, is a , bell on display on the grounds of the Moscow Kremlin. The bell was commissioned by Empress Anna Ivanovna, niece of Peter the Great. It has never been in working order, suspended, nor rung. The present bell is sometimes referred to as Kolokol III (Bell III), because it is the third generation. The Tsar Bell is located between the Ivan the Great Bell Tower and the Kremlin Wall. Made of bell bronze, the bell cracked during a fire after being completed and has never been rung. The bell is the largest bell in the world, weighing , with a height of and diameter of , and thickness of up to . The broken piece weighs . The bell is decorated with relief images of baroque angels, plants, oval medallions with saints, and nearly life-size images of Empress Anna and Tsar Alexey, who was reigning at the time the previous Tsar Bell was cast. The history of Russian bell founding goes back to the 10th century, but in the medieval Russian Orthodox Church, bells were not typically rung to indicate church services, but to announce important ceremonies and celebrations, and as an alarm in case of fire or enemy attack. One of the largest of the early bells was the original Tsar Bell, cast in the 16th century. Completed in 1600, it weighed and required 24 men to ring its clapper. Housed in the original wooden Ivan the Great Bell Tower in the Moscow Kremlin, it crashed to the ground in a fire in the mid-17th century and was broken to pieces. The second Tsar Bell was cast in 1655, using the remnants of the former bell, but on a much larger scale. This bell weighed , but was again destroyed by fire in 1701. After becoming Empress, Anna ordered that the pieces be cast into a new bell with its weight increased by another hundred tons, and dispatched the son of Field Marshal Münnich to Paris to solicit technical help from the master craftsmen there. However, a bell of such size was unprecedented, and Münnich was not taken seriously.