Oct 5 Lodovico Ferrari, Italian mathematician (b. 1522) Oct 12 Jean Ribault, French explorer and colonizer (b. 1520) Oct 14 Thomas Chaloner, English statesman and poet (b. 1521) Oct 22 Jean, Vicomte d'Aguisy Grolier de Servieres, French bibliophile (b. 1479) 1564 Deaths in History 1566