Terras do Avô wines arise from the inheritance of land that Duarte Caldeira received from his father, Alfredo Ferreira.

Terras do Avô wines arise from the inheritance of land that Duarte Caldeira receives from his father, Alfredo Ferreira, grandfather of his 3 children. Consequently the choice of the name of the wines, as a tribute to the grandfather for whom Sofia and her brothers had great affection and closeness. In 2016, Seixal Wines launched the first edition of the sparkling wine, to celebrate the golden wedding anniversary of Duarte and Julia (Father and Mother). Terras do Avô wines are produced with their own grapes and some purchased from small farmers in the area. The vineyards are spread over around 32 different buildings, spread across the parish of Seixal, municipality of Porto Moniz.