"Alexander Boris de Pfeffel Johnson was born in 1964 in New York. His great-grandfather was Ali Kemal, a Foreign Minister in the Ottoman Empire in 1919 who was assassinated in 1922. The P.M's grandfather emigrated to England and adopted the name"Wilfried Johnson".
Another family line in the P.M's pedigree includes Adelheid Pauline Karoline von Rottenburg, the illegitimate daughter of Prince Paul of Wurttemberg and Karl Maximilian Freiherr de Pfeffel."
Ministers are intrigued, MPs are curious and the cleaning staff are now reading every piece of discarded paper in waste-paper baskets.