Cate Blanchett's baby Ignatius

Cate Blanchett gave birth to son Ignatius Martin Upton yesterday (13.04.08).

The Oscar-winning actress welcomed her third son - who weighed a healthy 7lbs 9oz - with husband Andrew Upton in a hospital in Sydney, Australia.

A spokesman for the 38-year-old actress said: "All are well and very happy."

Cate and 41-year-old playwright Andrew already have two children, six-year-old Dashiell John and three-year-old Roman Robert.

While Cate's official due date is unknown, she revealed last week she was overdue.

Cate and Andrew - who have been married for 10 years - are based in Australia, where they also work as co-directors of the Sydney Theatre Company.

The actress recently revealed becoming a mother has made her a better person and improved her life more than she could ever have imagined.

She said: "You realise how much love you're actually capable of. It's like more doors open in your personality that you didn't even realise were there.

"It's a trip, being a parent, a privilege - even though it means you get a lot less sleep!"