She was 78.
Many of funeral-goers turned out in Zampatti designs, including former foreign minister Julie Bishop, who donned a navy velvet off-the-shoulder dress adorned in ostrich feathers around the neckline.
Inside the cathedral, Zampatti's three children stood arm-in-arm as they addressed the hundreds in attendance through tears, describing their mother as "warm", "captivating" and incredibly driven.
"Mum proudly referred to herself as a new Australian," son Alexander Schuman said.
"Determination, hard work and saying 'yes' to opportunity â they were what made her successful and as a mum, she wanted us to learn those lessons.
"CZ is what we called the family business. We referred to it as our other sibling â sometimes the favourite child.