Vortigern and the dragons http://www.vortigernstudies.org.uk/
Potential nicknames: Em, Rys
Origin: Welsh, meaning "immortal." Variant of Greek boy's name Ambrose, both coming from Ambrosios.
Popularity: Emrys is a very rare name in America, as there were only 9 baby boys born in 2010 with this name. It decreased by two in 2011 to only 7 boys born named Emrys.
Fun fact: (1) Emrys James, a Welsh Shakespearean actor born in 1928. (2) Part of Arthurian legend's Merlin, his full name being Myrddin Emrys Ambrosius. Geoffrey of Monmouth combined 5th century military leader Emrys Wledig's name with Myrddin Wyllt, a slightly famous prophet, to get Merlin's name. In Latin form his name is Merlinus Ambrosius. (3) Saint Ambrose of the 300s. (4) The historic castle of Dinas Emrys is now in ruins. Legend has it that Merlin was involved in freeing two battling dragons living under the castle of King Vortigern (see Rowena) before it was built, and once freed the red dragon finally won the battle, which is where the red dragon on the Welsh flag comes from. That's the castle of Dinas Emrys in the picture above.