0440 Sixtus III, Italian Pope (432-40), dies on this day in history. 

0472 On this day in history ricimer, Barbaars general, dies 

1186 Death of Geoffrey II, Duke of Brittany (b. 1158) on this day in history. 

1245 On this day in history death of ramon Berenguer IV, Count of Provence (b. 1195) 

1284 On this day in history death of alphonso, Earl of Chester, son of Edward I of England (b. 1273) 

1297 On this day in history death of saint Louis of Toulouse, French Catholic bishop (b. 1274) 

1493 On this day in history frederick III of Innsbruck, German Emperor (1440-1493), dies at 77 

1580 Andrea Palladio, architect/writer (Il Redentore, Venice), dies at 71 on this day in history. 
