Trump's German grandfather, Friedrich Trump, was ordered to leave the kingdom of Bavaria in February 1905, over his failure to undertake military service and properly inform authorities of his initial departure to the US 20 years earlier.
"Friedrich Trump emigrated from Germany to the USA in 1885. However, he failed to de-register from his homeland and had not carried out his military service, which is why the authorities rejected his attempt at repatriation," Roland Paul, a historian from Rhineland-Palatinate who found the document in local archives, told the tabloid Bild.
Friedrich Trump emigrated to US in 1885 for gold rush, did not get Germany's permission to leave. Was refused to resettle in Germany 1905.— Bill Vaughn (@simplemansguide) November 22, 2016
The decree orders the "American citizen and pensioner Friedrich Trump" to leave the kingdom within eight weeks "or else expect to be deported."
While describing the document as an "unspectacular piece of paper," Bild said it had "changed world history."
The Trumps: From Kallstadt to New York
Friedrich Trump was born in the south-western town of Kallstadt in 1869, but emigrated to US at the age of 16 to escape the poverty of his life in Germany and cash in on the gold rush on the other side of the Atlantic.
"Friedrich, Trump's grandfather, lived in a house which you would not even pay attention to when passing by. It's a totally ordinary house on a quiet village lane," Jorg Doerr, a local tourist manager in Kallstadt, told Sputnik.
Friedrich Trump, Elizabeth Christ, Malcolm MacLeod, & Mary Smith (Trump's grandparents) were all born in Europe.https://t.co/2p6nX7qNXh— travis lupick (@tlupick) November 8, 2016
Meanwhile, Donald Trump's pledge to deport millions of illegal immigrants in the US has been labeled ironic by some, who noted that Trump's grandfather, Friedrich, actually arrived in the US as an illegal economic migrant.
"Friedrich emigrated illegally. He didn't serve in the army, so he didn't have permission to leave. Years later, when he had become a wealthy man, he wanted to go back and live in Germany, but he was not allowed to. In 1905, he had to come back to the US," Doerr said.
Friedrich Trump's attempt to overturn the royal decree was rejected, with Trump leaving Germany for New York in July 1905.