Okay i went back and looked through the trees to find the relationship... i was wrong... they are 9th cousins the following way (common ancestor is Edward Bayley -
en.wikipedia.org/wiki/Edward_Bayly ):
1 1st Bt Plas Newydd Edward BAYLEY b: 1686 d: 28 Sep 1741
+ Dorothy LAMBART d: 16 Aug 1745
2 Lambart BAYLEY d: 1777
+ Elizabeth ROTTON b: 1728
3 Edward BAYLEY b: 10 Oct 1743 d: 21 Dec 1825
+ Elizabeth SYMES b: 1749 d: 5 Jan 1781
4 Reverend Henry Lambart BAYLEY b: 26 nov 1774 d: 25 Jul 1827
+ Selina LEVINGE b: 1780 d: 1852-07-18
5 Elizabeth Frances BAYLY b: 1804 d: 24 Oct 1880
+ William Josiah AYLMER b: 6 Dec 1802 d: 9 Aug 1883
6 Justin John AYLMER b: 11 Aug 1831 d: 12 Jan 1885
+ Caroline SLATTER b: 30 Mar 1826 d: 28 Jun 1861
7 Selina Frances AYLMER d: 14 Aug 1929
+ Warner William Warren WESTENRA b: 1842 d: 23 May 1906
8 Derrick Warner WESTENRA b: 1877 d: 1955
+ Helen Beatrice NICHOLLS b: 1885 d: 1970
9 Aylmer Derrick WESTENRA b: 15 Sept 1921 d: 1975
+ Living MENZIES
10 Living WESTENRA
+ Living IRELAND
11 Hayley Westenra
1 1st Bt Plas Newydd Edward BAYLEY b: 1686 d: 28 Sep 1741
+ Dorothy LAMBART d: 16 Aug 1745
2 Nicholas BAYLEY b: 1710 d: 1782-12-09
+ Caroline PAGET b: 1722 d: 1766-02-07
3 Henry PAGET b: 1744-06-18 d: 1812-03-13
+ Jane CHAMPAGNE b: 1748 d: 1817-03-09
4 Henry William PAGET b: 1768-05-17 d: 1854-04-29
+ Caroline Elizabeth VILLIERS b: 1774-12-16 d: 1835-06-16
5 Caroline PAGET b: 1796-06-06 d: 1874
+ Charles GORDON LENNOX b: 1791-08-03 d: 1860-10-21
6 Cecilia Catherine GORDON LENNOX b: 1838 d: 1910
+ George BINGHAM b: 1830 d: 1914
7 Rosalind Cecilia BINGHAM b: 1869 d: 1958-01-18
+ James Albert HAMILTON b: 1869-11-30 d: 1953-09-12
8 Cynthia Elinor HAMILTON b: 1897-08-16 d: 1972
+ Albert Edward SPENCER b: 1892-05-23 d: 1975
9 Edward John SPENCER b: 1924-01-24 d: 1992-03-29
+ Frances Ruth ROCHE b: 1936-01-20 d: 2004-06-03
10 Diana Frances SPENCER b: 1 Jul 1961 d: 31 Aug 1997
+ "Prince Charles"/ Charles Philip Arthur George Windsor, Prince of Wales
11 "Prince William"/ William Arthur Philip Louis Windsor, 1st Duke of Cambridge
11 "Prince Harry"/ Henry Charles Albert David Windsor, Prince of the United Kingdom
i hope this makes Hayley smile... at least this way she can explain to Prince William or Prince Harry the next time she sees them exactly how they are cousins
i cannot remember off the top of my head the latest of the English Kings she descends from... but she is 8th cousins to Princess Diana's sons (Prince William and Harry).
Hope this makes someone smile a little
blessings,
Peter
Does Hayley know this? Maybe that's what she and Harry were smiling about a few summers ago, who knows?