AuldJosey I'll give it a go, then I have to go to bed because I've got work in the morning.
The Queen had 4 children:
Anne - eldest, said to be very sensible and down to earth, looks quite horsey. Was married to Captain Mark Phillips but got divorced. Has children, Zara Phillips who is very successful horsey person (Olympics?) married Mike Tyndale (Rugger bloke) and now have 2 x children. Anne also has another child, Peter Phillips.
Charles - heir to the throne. Previously a bit of playboy, married Diana when she was just 19, disastrous marriage. Both of them had affairs and manipulated the press against each other. Charles has married his long-time mistress from before and during his marriage to Diana, Camilla (formerly Parker-Bowles).
Andrew, Duke of York. Married to Sarah Ferguson who was hideously advised at the time and was very jolly hockey sticks. They divorced after she was revealed to be having an affair with an american who was filmed sucking her toes. 2 girls, Beatrice & Eugenie. Duke of York has lots of dodgy business dealings and friends (Jeffrey Epstein, convicted of child sex abuse) and lots of rumours. Andrew & Fergie, whilst divorced, still live close to each other and operate as a family unit.
Edward, the youngest. Went into acting and was widely believed to be gay, although married Sophie in the last 10 years or so and have since had children.
Princess Margaret was the Queen's sister. She was a vile old soak who spent most of her time in the Caribbean and was renowned for being tight with money and chain smoking. She would buy economy air fairs on BA, in full knowledge they would always upgrade her. She has had a romance with a divorced man when younger, and was forbidden from marrying him. Likely that her alcohol abuse stemmed from the bitterness arising from that.
That's the best I can do at this time of night.