When he married in 1901, he and his wife (Olga Knipper of the Moscow Art Theater) went directly from the ceremony to a honeymoon in a sanitarium.
His wife has never went to a sanitarium. 
mnli hypothesis: His wife has never went to a sanitarium.  premise: When he married in 1901, he and his wife (Olga Knipper of the Moscow Art Theater) went directly from the ceremony to a honeymoon in a sanitarium.