10 May Nepero
Dead: 4 April 1617
He was a Scottish landowner known as a mathematician, physicist, and astronomer.
He was the 8th Laird of Merchiston. His Latinized name was Ioannes Neper.
John Napier is best known as the discoverer of logarithms.
He also invented the so-called "Napier's bones" and made common the use of the decimal point in arithmetic and mathematics.
Napier's birthplace, Merchiston Tower in Edinburgh, is now part of the facilities of Edinburgh Napier University.
Napier died from the effects of gout at home at Merchiston Castle and his remains were buried in the kirkyard of St Giles.
Following the loss of the kirkyard there to build Parliament House, he was memorialised at St Cuthbert's at the west side of Edinburgh.