She wasn't born a princess, a pony, or even a she.
He adapted. It was either that, or crumble into dust.
'When in Rome' the phrase went. Even when the proverbial 'Rome' was built by quadruped equines.
The universe had a purpose for him. Or perhaps another universe did, and bartered?
Having escaped the fate that the entire crew met by no actions of his own, there was no going home, only forward. His new life was about to begin again, in so many ways.
This story comprises of the non-anthro ponies of Equestria, and what our main character became, thanks to them...
Though they had no idea he was even there, and had saved his life. At least, in the beginning, they didn't.
In her life she's seen incredible things; A planet of pegasi, A world of alicorns; Connecting the princess sisters to a now-frozen world, and the magic that got them to Equus before it became entombed in ice...
As well as another space-faring species; That was less than friendly...