Flight
Paris has a few airports, the main airports are Charles de Gaulle (CDG) and Orly (ORY) From CDG you can take a train, the RER B, to the center of Paris, which takes around 50min From ORY there are various train options, which take around 45min to Paris. You can also take a taxi or rideshare to Paris, the taxis have a fixed price.
Train
Access the Chateau from Paris by regional train in 1h50 from Paris Bercy to Tracy/Sancerre or Cosne-sur-loire. It's 2 hours drive from Paris Porte D'Orleans. There are several trains a day and the station is a short taxi ride away.
Hotel
This hotel is a 5 minutes drive to Chateau de Thauvenay and nearby all the charming town of Sancerre has to offer!