Medieval oil painting of couple (AI art)

Hello, for a wedding present, we want to have a medieval-style picture of the couple (man & woman) with the following requirements:
1. Both should still be recognizable but wear medieval-style fashion
2. The style should be a medieval oil painting
3. in the background should be a castle that has mushrooms as towers
4. in the front should be a font that states their names and the wedding day in roman numbers.

I will provide the pictures, etc. once I have found someone. Might be an ideal job for an AI image generation! :)