Sens is a city in the department of Yonne and region of Burgundy in north-central France, 120 km from Paris.
Tchaikovsky in Sens
Tchaikovsky travelled to Sens from Paris on 4/16 May 1883 in order to see his grand-nephew Georges-Léon, who shortly after his birth eight days earlier had been handed over to the care of a wet nurse in the nearby village of Villeneuve. He was accompanied on this journey by Yelizaveta Molas, who was looking after the composer's niece, Tatyana Davydova, in Paris.
On 5/17 May 1883 Tchaikovsky visited the city's Gothic cathedral and was greatly impressed .