You don't indicate where you got this sequence, but I'm guessing it's from
Leo's Genealogics site, which in turn cites Paget's ancetsry of Prince
Charles.
Way back in 1981 or 1982, in his review of Paget's work (in "The
Genealogist"), Gary Boyd Roberts noted that the parentage Paget specified
for Margaret Tyrwhit was chronologically impossible and not supported by
Tyrwhit pedigrees. He could not find an alternative parentage for Margaret,
and I don't know that anyone else has done so since....
----- Original Message -----
From: <WJhonson@aol.com>
To: <GEN-MEDIEVAL-L@rootsweb.com>
Sent: Friday, May 19, 2006 6:42 PM
Subject: Another broken link Thomas Cockayne 1618 ---> Edward I via St Paul
The statements
1) Thomas Cokayne baptised 18 Mar 1618
2) son of Ursula Pell of Dimbleby
3) Ursula dau of Margaret Tyrwhitt of Stainfield
4) Margaret dau of Sir Edward Tyrwhitt of Stainfield
5) This Edward baptised 23 Mar 1577 buried 3 Mar 1628
From great-grandfather Edward to Thomas is only 41 years
That is not possible

Will Johnson