Religion: sentient planet
Name: Living Earth
Number of Appearances: 1
Gender: not applicable
The "Living Earth" was featured in a What If? story that pondered: "What if the Avengers had lost the Evolutionary War?" In this story, the Earth itself eventually merged with all evolved life on Earth, thanks to the High Evolutionary's continued tinkering with life on the planet.
Presumably the Living Earth was sentient, as essentially an emergent sentient "lifeform." But this planetary sentience and its significance is something that needs to be verified through further study of this story.
Suggested links for further research about this character and the character's religious affiliation: