San Sebastiano's Temple

In-depth studies have revealed the perfect mathematical proportions of the elements from the original design. But this claim is overshadowed by the church's turbulent history. In the 1470s, just after works had commenced, there was a dramatic turn of events when, according to the Marquis of Mantua, Fancelli decided not to follow Alberti's original instructions. It is worth noting too at this point that Alberti himself appeared to have lowered the height of the chapels while the building work was being carried out.