 There was a demand for builders in Muscovy, and he traveled there with the Pope's support.His work in Russia includes the 1532 construction of the Ascension Church in Kolomenskoye (the true architect's identity is still contested), one of the earliest Russian churches showing tented roof design.In 1533, Petrok Maly was commissioned to build the so-called Kitai-gorod wall, the construction of which would be finished in 1538.