Guardian Prime

Guardian Prime is an Autobot from the Generation 1 continuity family.

Guardian Prime is a former bearer of the Autobot Matrix of Leadership.

Fiction

Dreamwave Comics

Guardian Prime did not appear in any story material, but was listed in the More Than Meets The Eye guidebook's list of "Known Matrix-bearers". He followed Alpha Prime and was himself followed by Sentinel Prime.

From Teletraan I: The Transformers Wiki, a Wikia wiki.