He isn't married to a Frey yet.
He is offered a dowry equal to the weight of whichever woman Bolton chose to marry. He chose the largest Frey he could find. GRRM didn't really get into the reason why, but it can be speculated that it was used to seal the loyalty of Bolton when the Frey's betray Robb.
He is offered a dowry equal to the weight of whichever woman Bolton chose to marry. He chose the largest Frey he could find. GRRM didn't really get into the reason why, but it can be speculated that it was used to seal the loyalty of Bolton when the Frey's betray Robb.