Some of the comments on here seem a bit harsh. Yes, Prince Philip now comes across as a cantankerous, obstinate, privileged old man, but whatever the ins and outs of their long marriage, he has supported the Queen throughout her long reign. I think it was at her Golden Jubilee that she paid tribute to him, saying he had been her strength and support all those years, and that the nation would never know how much, also that he was a man who hated fuss.
When he dies, I have read he wants no big state or royal funeral, sounds like it will be a very private, low key affair.