Lord Vishnu has 2 wives: one is Shree Mahalakshmi and the other is Bhumi Devi, as mentioned in the following shlok which many people say in the morning:
॥ विष्णुपत्नि नमस्तुभ्यं पादस्पर्शं क्षमस्वमे ॥
"|| O consort of Lord Vishnu, forgive me for stepping on you ||"
Here it is explained that Lord Vishnu has two wives, Mahalakshmi Devi and BhooDevi (Earth Goddess)
If Goddess Sita is the daughter of Bhumi Devi then how can we say Lord Ram is Incarnation of Lord Vishnu?
If it is true, then in the form of Lord Vishnu, Bhumi Devi is his wife, and in the form of Lord Ram, Bhumi Devi is his mother in law.
Could somebody please explain this?