What is the connection between Glenfiddich and Portugal? Beats me, but back in 2011 the distillery decided to celebrate 15th century Portuguese explorers. This 19yo whisky (finished in Madeira casks) was one of the results.
If you ask 100 people what their first malt whisky was, I think Glenfiddich would win, hands down. I recently attended a Glenfiddich-tasting, because I thought it would be fun to go back to my roots, so to speak.