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In page Vasili III of Russia:

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By 1526 when he was 47 years old, Vasili had been married to Solomonia Saburova for over 20 years with no heir to his throne being produced. Conscious of her husband's disappointment, Solomonia tried to remedy this by consulting sorcerers and going on pilgrimages. When this proved unsuccessful, Vasili consulted the boyars, announcing that he did not trust his two brothers to handle Russia's affairs and forbade them to marry anyone.[citation needed]