There is a funeral certificate for a
Robert /Drury/ of Callon, co Roscommon; esq
"only son of his father"
d 13 Jan 1673 "in his 63rd year"
http://catalogue.nli.ie/Record/vtls000529291#page/231/mode/1up
In this it is stated that his paternal grandmother was an Elizabeth Carew "sister of Sir Peter Carew".
Meanwhile in another part of his tree, he descends from
Robert /Drury/ of Hedgerley, co Buck and of Chalfont; Knt; Mp; Ho
second son; born by 1503
by
Elizabeth /Brudenell/
Sole heiress of her father Edmond esq
Robert Drury's third son
William /Drury/ , Knt 1570
was born exactly on 2 Oct 1527
Edmond Drury of Horton Bucks, called "fourth son"
then is tentatively given a birth range of 1528/1556
He married Jeanne Trenchard
daughter of Thomas /Trenchard/ of Litchett, co Dorset
by Avis de la /Lynde/
Their second son
Robert /Drury/ of Laughlin; esq
is tentatively given a birth range then of 1547/1575
He married Elizabeth /Carew/
I very much doubt she was much older than her husband so a birth range of
Elizabeth /Carew/
Now as to her brother called "Sir Peter Carew"
I know of two men of this name
Peter /Carew/ , Knt; W
born 1511/1513
third son; heir "aged 33" of his brother George 1545
d.s.p.; Ross, Waterford, Ireland
27 Nov 1575
and this man's first cousin
Peter /Carew/ , Knt; W
d 25 Aug 1580
"killed by the Irish in a skirmish"
first son of George /Carew/ , Dean of Bristol
It seems more likely that she would be a sister to this last man
*however* there is a giant problem
This last man
https://dcms.lds.org/delivery/DeliveryManagerServlet?dps_pid=IE98635
Vis Devon "Carew", page 135
where he has one only sister Mary
Mary in her M B states she is an only sister
and Mary's husband in his M B states she was an only daughter
So.
Is there another Sir Peter Carew in the proper time period to be the brother of Elizabeth (Carew) Drury ?