26 January, 2018
The scientists extracted DNA from the mummy's big toe and it was compared with DNA from descendants of the Bischoff line. While little is known about Anna's life, her body dressed in good quality clothes and riddled with mercury, which was a standard treatment for syphilis from the 15th century onwards. Anna Catharina Bischoff died in the 16th-century, but her body was only discovered in 1975 in front of the altar in a church in Basel.
DNA tests show Bischoff died of mercury poisoning, which explains why the remains were so well preserved - the poison acted as a preservative.
Scientific analysis dated the coffin to the 16th century, the BBC reports, when Basel was "a wealthy trading city" on the busy Rhine shipping route.
We now know the toxic chemical is more likely to kill than a cure a patient.
Newly discovered archives in 2017 led historians to suspect the mummy was of a well-established Basel family, the Bischoffs. A 99.8 per cent match was found and the relationship to the Johnson family was confirmed by records of births, deaths and marriages.
They found she had seven children, of which only two survived.
SRFScientists examine the mummy at their laboratory in Basel
Once Anna Catharina's husband passed away, she returned to her hometown and started an intense treatment to cure the disease, but to no avail.
Five generations of von Pfeffels later, and Marie Luise von Pfeffel married Stanley Fred Williams.
Anna Catharina Bischoff is believed to be the great-great-great-great-great-great-grandmother of the British Foreign Secretary.
Mr Johnson hasn't commented on the discovery of his long lost relative, but he is aware of the von Kriegelstein connection, having once told the BBC programme "Who Do You Think You Are?' that they were 'posh toffs".
Their daughter Yvonne married Osman Wilfred Johnson Kemal... and their son, Stanley Johnson, is British Foreign Secretary Boris Johnson's father.
International Monetary Fund raises Italy growth forecasts
A stronger USA economy will also boost the economies of America's trading partners, especially Mexico and Canada. The IMF said growth in 2017 picked up in 120 economies that together account for about 75% of global GDP.
4 die in hotel fire in Prague
Prague ambulance spokeswoman Jana Postova added: "I can confirm we could not help two people". The cause of the fire which started on the ground floor is not yet known.
Rare move: NASA bumps astronaut, Syracusan off space station flight
Meanwhile, the would-be space voyager will assume duties at the Astronaut Office at NASA's Johnson Space Center in Houston, Texas. Friday, Dean confirmed that Epps had returned to the active astronaut corps and would still be considered for future missions.