Alvarinho / Albariño: the cross-border grape
Minho, Portugal / Rías Baixas, Spain
The most compelling cross-border story in Iberian wine — a single grape variety, divided by the Minho River that forms the border between Portugal's Minho region and Spain's Galicia, producing two meaningfully different wines under two names: Alvarinho (Portuguese) and Albariño (Spanish). The variety almost certainly originated in the Minho valley and was likely brought to the Spanish side by pilgrims on the Camino de Santiago — the monastery of Armenteira in Galicia is credited with the first Spanish cultivation.
The two wines differ: Portuguese Alvarinho (from Monção e Melgaço) tends to be richer, more aromatic, slightly fuller; Spanish Albariño (from Rías Baixas) tends to be more citrus-forward, more saline, slightly more austere. Both are exceptional with the seafood of their respective Atlantic coasts.