Quote from: Maester Rawl on May 07, 2019, 07:28:47 PM
I've only been able to recruit the King's Guard by sieging and taking a fief they were held in as prisoners. If you win tournaments in King's Landing while they are there, you will get a +1 relations with each of them. Then it's up to RNG whether they like you enough to join. I've only done this once or twice. It's difficult.
I've never been able to recruit other companions.