This document provides a summary of several famous feuds throughout history. It lists famous feuds such as Elizabeth I vs Mary, Queen of Scots, Alexander Hamilton vs Aaron Burr, Al Capone vs Bugs Moran, Joseph Stalin vs Leon Trotsky, Tupac vs Notorious B.I.G., the Grahams vs Tewksburys, and the Hatfields vs McCoys. For each feud, it provides a brief overview of the key people involved and events that occurred as part of the prolonged conflict between the two groups.