Michelle Williams and Heath Ledger had a daughter together, but during which time period were they a couple?

Explanation

The American actress Michelle Ingrid Williams was born in 1980. In 2004, Williams started dating Heath Ledger and in 2005 was their daughter, Matilda Rose Ledger, born. Williams and Ledger separated in 2007 and Ledger died the following year. Williams has also been dating director Spike Jonze and actor Jason Segel.