Royal Lochnagar's most famous expression actually isn't its single malt. It's a large part of Johnnie Walker Blue Label, to which it lends its sweet and floral Highland base. The distillery itself has a cool backstory, which the name reveals in part. In the 1840s, the distillery owner invited his neighbors -- Queen Victoria and Prince Albert, who owned a nearby castle -- to sample his wares. The royal family enjoyed the whisky so much that they gave it a rare royal warrant, an honor accorded to only a few distilleries to my knowledge. I believe that Royal Brackla is the only other one that has Royal in the name. Laphroaig, which is Prince Charles's favorite, has a warrant from him, although I'm not sure if that's technically a royal warrant, as he isn't king (certainly the distillery hasn't named itself Royal Laphroaig, which would be hilarious). Anyways, Royal Lochnagar 12 is mostly found in the UK, not in the States, and I'd describe it as an unexceptional Highland single malt. The most unique note that I can remember is a papaya-like flavor on the palate, which gave it a refreshing tropical character.