User blog comment:PUNCHURPREGNANT/Gray and Silver Predictions/@comment-210.195.253.76-20140110173732

The most likely is, Silver is Gray's father. I think he somehow sold his soul to Deliora to save Grey and got turned into Demon like Minerva. The death of his wife must be related to Gray, such as she sacrificed her live to save Gray or Gray is the reason Deliora attacked the village and the cause of her wife death, somehow.