Arvon is the Oldest living dragon lord to date now, but NOT the oldest dragon living. 
>
Meaning out of the 6 which are played by the you guys I am older. meaning I am 700 the rest of you are younger then 700.

When the Dragons were asunder it was he who reached out to the other lords and asked them to build a new kingdom so they would rebuild and reclaim one day.
>
Meaning i reached out to you all and brought us all together.

I never said there are other dragon OLDER lords, i said other dragons don't approve of his lordship cause he is not 1200. Same for all of you, the previous leader of your clans have been killed protecting the clans and you as blood are the rightful leader. 

Edit: Did that clear up any confusion? If not I will rewrite it so its more understandable, I kinda wrote it up when i was dead tired one night lol and it made sense to me then... hehe