When you're Hyrule castle,look at the painting above the entrance on the left.It's a picture of Zelda and other residents of Hyrule castle.Look closely,The hylians in the picture,are actually Tetras' pirate crew.Do you think they knew Tetra is Zelda? :o
Noticed that the first time I played the game. I don't think they know about their ancestors, but I do think they know they "have to" serve Tetra.
Yeah, I noticed that too. I always look for those things, such as certain things on desks, in windows, and inside pots. They were most likely ancestors.