George VI had cancer of the lung (one lung had be removed). He died of cancerafter a long illness.
He is married to Elizabeth Angela Marguerite Bowes-Lyon.Source 1
They got married on April 26, 1923, he was 27 years old.
Child(ren):
Christened: Albert Arthur Frederick George. Known to the Royal Family asBertie; Was Prince Albert, Duke of York (1920-1936); Acceded as George VIfollowing his brother's abdication on 11 Dec 1936. The reign of George VI wasmarked by the relinquishment of the title of Emperor of India, following thepartition of India in 1947 into Pakistan and India.
Bertie had a speech defect which made him stutter and stammer.