ISABELLA OF CASTILE (1451-1504). Document Signed ('Yo la Reyna' - I the Queen), requiring her chamberlain Sancho de Parades to pay the sum of 1000 maravedis to Pero Martin, her groom of chambers, as a reward for his services, countersigned by the Queen's secretary Gaspar de Grizio, below which M...
EINSTEIN, Albert. Typed Letter Signed, with three words in his hand, to the statistician and demographer Dr R R Kuczynski on the subject of the German financial situation, [Berlin]. Creation dates: April 1920