 Very little is known about Calvin 's personal life in Geneva . His house and furniture were owned by the council . The house was big enough to accommodate his family as well as Antoine 's family and some servants . On 28 July 1542 , Idelette gave birth to a son , Jacques , but he was born prematurely and survived only briefly . Idelette fell ill in 1545 and died on 29 March 1549 . Calvin never married again . He expressed his sorrow in a letter to Viret : 
