About Anne Napier (Chisholm)
"Agnes, who, as his second wife, married the celebrated John Napier of Merchistoun, the inventor of Logarithms, with issue five sons, all of whom founded respectable families, and five daughters, who were all well married." She was a great-granddaughter of James IV., her grandmother being the daughter of that monarch and his celebrated and ill-fated love, Margaret Drummond. Agnes Chisholm was the second cousin of the philosopher's (John Napier) first wife, Sir James Stirling of Keir having married a daughter of the prelatic concubinage betwixt the Bishop of Dunblane and the Lady Jean Graham, daughter of the Earl of Montrose. She was also the second cousin of his father, whose grandmother was Janet Chisholm of Cromlix."
SOURCE: A Genealogical Deduction of the Family of Rose of Kilravock; The Spalding Club; 1848; page 211