James Graham, 1st Duke of Montrose Directory References Discover Ten Days That Vanished: The Switch to the Gregorian Calendar Poker Hands Ranked 7 Deadliest Weapons in History 6 Animals We Ate Into Extinction 7 Everyday English Idioms and Where They Come From Is Cinco de Mayo Mexico's Independence Day? 7 of History's Most Notorious Serial Killers Contents James Graham, 1st Duke of Montrose Scottish noble Ask the Chatbot a Question Ask the Chatbot a Question Learn about this topic in these articles:conflict with Rob Roy In Rob RoyJames Graham, 1st duke of Montrose, succeeded in entangling him in debt, and by 1712 Rob was ruined. Read More