Boris Johnson’s dad, Stanley, is smart enough to know that if you send your children to the right school you maximise their chances of getting to Oxford or Cambridge.

When the Daily Mail asked how he managed to get all six of his children to Oxbridge, he said:  “It never struck me that was particularly remarkable. What do you expect if you send your kids to Eton and St Paul’s?”

Not much has changed since Boris and his siblings went to university. The top  ten is dominated by the traditional, seriously expensive boys” schools.  Eton College and St Paul’s School  rank top and third in the Oxbridge stakes, (though Boris’s dad might have meant St Paul’s Girls’ School  where Boris’s sister, Rachel, did her A-levels),  ranked sixth.

The two schools that send the most sixth-formers to Oxbridge are Westminster School, the alma mater of Nick Clegg,  deputy Prime Minister and leader of  the Liberal Democrats, and Eton College. which has educated a long line of prime ministers, including David Cameron.  Westminster is the most expensive boys’ day school in London – almost a quarter of its intake is boarders who pay even more.  Girls are admitted only in the sixth-form.

Their closest rival is St Paul’s School, famous old boy, George Osborne, chancellor of the exchequer, (53) to Oxbridge.  King”s School Wimbledon, a boys” day school in  south London is listed fourth.  It used to do only the International Baccalaureate, (IB), but has now reintroduced A Level, alongside the IB. Winchester College, a boy”s boarding school in Winchester, is fifth.  The two girls” day schools in the list are St Paul”s Girls and North London Collegiate School. The only co-educational schools are Sevenoaks School in Kent, an International Baccalaureate (IB) trailblazer, and Magdalen College School in Oxford.

• School                                                                                                  Oxford           Cambridge

Eton College, Windsor                                           76                                     52                          24

Westminster School, Westminster                     75                                      37                          38

St Paul”s School, Barnes                                        53                                     30                           23

King”s College School, Wimbledon                     39                                      21                           18

Winchester College, Winchester                          37                                      21                           18

St Paul”s Girls,  Hammersmith                            35                                      22                            13

North London Collegiate School, Edgware      35                                      18                            17

Magdalen College School. Oxford                      31                                       14                            17

Sevenoaks School, Sevenoaks                             30                                       9                              21

Tonbridge School, Tonbridge                             30                                      12                             18

Royal Grammar School, Guildford                     30                                   12                               18