Upvote:2
This doesn't fit your criteria exactly, but it's as close as you're going to come.
The settlers of what later became Utah proposed that a "State of Deseret" be formed out of a large swath of the American West.
Under the Compromise of 1850, the Utah Territory was organized, but some settlers wouldn't give up the name. Brigham Young and others apparently held shadow legislative sessions under the rubric of the "State of Deseret", and some attempts at drafting a state constitution used that name.