The Maremma (/məˈrɛmə/, Italian: [maˈremma]; from Latin maritima, "maritime [land]") is a coastal area of western central Italy, bordering the Tyrrhenian Sea. It includes much of south-western Tuscany and part of northern Lazio. It was formerly mostly marshland, often malarial, but was drained by order of Fernando I de' Medici.