John's relationship with each of the other Beatles was different. He was at his most relaxed with Ringo, who often had him in stitches with his jokes.

The first thing Julian wanted to do in life, well, before he wanted to be an artist and then a musician, was to be a chef. He'd come home and say 'Why don't you bake cakes like my friends' mothers?' I'd say, 'Oh, Julian, go out and buy a Mary Baker cake mix and do it yourself!' That started him off! By the time he was 13, he'd disappear into the kitchen whenever we had visitors and emerge with beautiful canapes. Now he thinks nothing of cooking for ten or 15 people, and he does it so calmly.

John was closest of all to Paul; their relationship was very complex.

John needed to escape his reality. I understood completely but I couldn't go along with him.

Ringo had this habit of lighting up two cigarettes, one for Maureen at the same time that he lit his own. I remember thinking it was a loving thing to do and wishing John did it for me. But that would have been too obviously demonstrative, maybe, for John.

John was an extraordinary man. Our relationship has shaped much of my life. I have always loved him and never stopped loving him. That’s why I want to tell the real story of the real John – the infuriating, lovable, sometimes cruel, funny, talented and needy man who made such an impact on the world. John believed in the truth and he would want nothing less.

I was proud, excited and a little frightened. It was all taking off so quickly…the more successful the boys were, the further away from me John felt. I was getting used to being a mum, but most of the time I felt like a single parent…it was hard not to feel frustrated with being stuck at home. I loved Julian, but I knew that if I hadn’t had him I could have seen much more of John and that was hard…I felt shut off from the life he was living. After years at his side, I was excluded, just as it was all happening.