A long time ago, I had a character from the series of stories I made whose name was Kian Tunley. When I was 13 my parents got Star Wars Galaxies (back when the game was good and when it wasn't just everquest in space and I personally hate SOE due to this event).
I wanted to make a character on the game and wanted to use the name Kian Tunley, but the name Kian was taken. Frantically I searched for a name and found my Pokemon Ruby guidebook open to the page about Latias and Latios. I chose the name Latios becuase it sounded more masculine and replaced the T with a D so I wouldn't be a pokemon. The last name Metsuvaru came after thinking for about a minute of something that flowed smoothly with Ladios.
Now in my series of stories, the character Kian changes his name to Ladios Metsuvaru when he goes into hiding. Now, Ladios is a province in his home country, and Metsuvaru is a computer manufacturing company, which is where he supposedly got the name in the story.
TLDR: Name started as Kian from a story I made. Name was taken on Star Wars Galaxies. Took the name Latios and swapped out the T for a D.