Linda Evangelista has been to court this week in an attempt to secure a supoprt agreement for her four-year-old son, Augustine James.
The model attended the Manhattan magistrates court in what's thought to be her fourth visit.
'Augie's' father is thought to be billionare and fashion mogul Francois-Henri Pinault.
Linda's representatives had repeatedly denied the rumour that he was the father of her son.
And until now, all the supermodel mum would divulge was that he was "a New York architect".
The businessman is married to actress Salma Hayek and is the father of her four-year-old daughter Valentina.
Francois and Salma married in 2009 following a brief split in 2006.
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