Or you have Icelandic: "A" is a distinct letter and distinct vowel. "Á" is also a distinct letter and a distinct vowel, and not an "A" with an acute accent.

Or you have Icelandic: "A" is a distinct letter and distinct vowel. "Á" is also a distinct letter and a distinct vowel, and not an "A" with an acute accent. "À" exists in Icelandic in (very few) French loan-words and is not a distinct letter nor a distinct vowel, instead it's viewed as an "A" with a grave accent. (And this is why lexical sorting has to be highly localized. I still think Turkish has the funniest gotcha where "I" and "i" aren't the upper/lower-case of the same letter, it's the uppercase of one letter, and the lowercase of a completely different letter.)