The window block from Bogolyubovo

The paper publishes a white stone block from the Church of the Nativity of Our Lady discovered by N. N. Voronin during excavations in the 1930s. The block is now on display in an exhibition trench inside the building. There are analogies to this block profile among the profiles of the windows in the apses of the Church of the Intercession on the Nerl'. These profiles are modeled after window profiles of a cathedral built in Modena at the turn of the 12th century by the architect Lanfranco and the sculptor Wiligelmo in the Romanesque style. The attribution of the stone block as a window unit and the selected analogies mean that the cathedral in Bogolyubovo had windows similar to the altar windows in the Church of the Intercession on the Nerl' and that the masters who built both churches commissioned by the Prince Andrey of Bolgolyubovo came from the Emilia Province in Italy.