Princess Sara

Princess Sara is an alternate version of Princess Sally from Planet Freedom in an unnamed Zone. She was kidnapped by an alternate version of Dr. Robotnik who wanted to marry her. Sonic and Tails battled him and his robot, Metal Robotnik, briefly to help save Princess Sara after their Mobius was altered to resemble this dimension by the efforts of Chaos Knuckles. The restoration of reality ended this incident and possibly erased it from the minds of those on Mobius. (StH: #101)

Background Information
Despite being a nod to the Sara from Sonic the Hedgehog: The Movie this Sara's origins appear to be different. Like the OVA version, this Sara lived on Planet Freedom, though in the OVA Sara was the daughter of the President of South Island, not a princess.