sentences:  Trickett claims that Mendonça travelled down the east coast of Australia, sailing into Botany Bay and then around Wilsons Promontory to Kangaroo Island, before returning to Portuguese-controlled Malacca via the North Island of New Zealand.He also claims the Portuguese charted the Western Australian coast, as far south as the southwest tip of Australia.Trickett claims that the French Vallard maps were composed of several portolan charts that were incorrectly assembled from now lost Portuguese charts.