The Norse dwarves are highly significant entities within Norse mythology. They are the makers of most of the artefacts of the gods, both Aesir and Vanir. Their dwelling places are two of the nine worlds upon the world-ash Yggdrasil, that of Nidavellir and of Svartalfheim.
They are known also as svartalfir, or "dark elves".
... merely designated anyone who assumed power for any period of time without a legitimate basis of authority.
The first to have the title of "Tyrant" was Pisistratus in 560 ...