I suppose that, if he was pressured by his parents to get married with someone he didn't want to marry, that would fall into the "relationship between Charles and his parents" category and, therefore, that discussion would be suitable for this thread.
The problem is, again, that, according to some posters here, there has never been any such pressure. As I said, I am ignorant on the topic.
There was pressure, but it was not really direct pressure from Philip.. it was more complicated than that. The fact was that he had reached an age where he was expected to marry. It was his duty as POW to marry and produce children. He knew that, but I think he also knew that he wasn't really all that keen on marriage at that time.. and that he had a stronger love for Camilla than he was likley to have for another woman.
But he's a dutiful man, he beleived it was the right thing to do, to get married and have a family and get on with his work as POW.
And If he'd asked his parents, direclty at the time Im sure both of them woudl have said "Yes Charles, you're over 30 now. If you dont get married soon, its going to look a bit odd. You're not likely to get a woman who hasn't had boyfriends and a sex life, who is any way close in age to you and the longer you leave it the worse it will get. And you'll be a lot older than your kids..."
So when he had been dating Diana, the press were pushing for an engagement - then Philip DID write to him and say in effect "Get on with it for Gods sake". He was impatient with Charles' dithering and he and the queen felt that the whole courtship with the press fuss about Diana was too much to take and that they didn't want it going on any longer..
There was a lot of pressure. But I think that if Charles had been a bit stronger minded, he might have resisted and said that he wanted to wait, or that he didn't beleive Di was the right one for him and broken off with her.
It woudld have resulted in bad headlines but maybe it woudl have been better if he had done so, stopped seeing her after a month or 2 and waited another year before marrying.
Having said that, he was getting older, It was hard to resist the conclusion that the time HAD come for him to get married...