This wine is named after Grace Madeline, Diana Madeline's mother. Grace, originally from London, lived most of her life in Tasmania and was a suffragette, who loved nature as well as being mother to three daughters. Grace Madeline is blend of Sauvignon Blanc (74%) and Semillon (26%), planted in 1976 on Cullen Estate.

The fruit was harvested in between 13th and 28th of February 2025 on two fruit days and a flower day. The phenolic tension and fine tannins come in part from overnight skin contact and texture from barrel fermentation. The average in oak for the Sauvignon Blanc after natural yeast, fermentation, with no additions of acid yeast etc was 6 months in barriques, 58% of which were new.