[1] The Troitskaya Tower was built in 1495–1499 by an Italian architect Aloisio da Milano (known in Russia as Aleviz Fryazin Milanets).

It received its current name in 1658 from the Troitskaya Coaching Inn (Троицкое подворье) in the Kremlin.

In 1707, due to a threat of Swedish invasion, the gun slots of the Troitskaya Tower were enlarged to fit heavy cannons.

Prior to Soviet rule the tower had an icon of the Holy Trinity atop its outward face.

Its current height on the side of the Alexander Garden together with the star is 80 metres (260 ft).