OK So from all my research of this Seton de Winton family, I can see that there is going to be on thing for certain.
From Philip stems the family of Winton, and in the style of the times, his son took as their family name that of their estate.
So as I follow who seems to have the estates of Winton I start with the very first. The de Quincey Heiress and daughter of Earl of Winton.
Next their son Alexander was the proprietor of Seton and Winton in East Lothian and of Winchburgh in Linlithgowshire.
Next of course his son Phillip, because history states the family of Winton stems from his son.
The only son I can find with the title of Winton...Adam de Polwarth, Knight, had the lands of Beith given him from Sir Alex- ander Seatoun of Wintoun, in frank marriage with Eva his sister.
Next where I find the Winton Estates....Source= http://www2.thesetonfamily.com:8080/directory/Descents/early_seton_... Sir John de Seton (who held the manor of Seton in Whitby Strand, Yorkshire, and the estate of Winton). He, in a donation of Robert de Bruce, Lord of Annandale, to the priory of St. Andrews, 1294, is designed Dominus Joannes de Seton, miles. John (Johan) de Seton, swore featly to Edward I, 1296
This point there seems to be confusion as to Sir Christopher's father is...
From everything that I can find the most sources for is that Christopher Seton who married Christian Bruce Christopher is the son and heir to John.
http://www.stirnet.com/HTML/genie/british/ss4as/seton01.htm
Sir Christopher who married Christian, sister of King Robert the Bruce. TSP reports that conclusive proof, not known to the above-mentioned genealogists, is now available, which proves that Sir Christopher was son of Sir John de Seton, who held the manor of Seton in Whitby Strand, co. York td 4
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Source= http://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Seton
SIR Christopher Seton, son and heir of John de Seton, a Cumberland gentleman, and his wife Erminia Lascelles, was born probably in 1278, since his age is given in Dlarch 1299 as twenty-one, in an inquisition into the lands of his deceased father. He did homage for these in October of that year, and was in the service of Edward I. at Lochmaben in. 1304. In 1305 he came into possession of lands which had been granted by Sir John Seton to Robert Bruce and his wife Christian, who was perhaps a Seton. He had married about 1301 Christian Bruce, sister of King Robert, who was possibly his second cousin. He was present at his brother-in-law's coronation at Scone in 1306, and saved his life at the battle of Methven later in the same year.
http://archiver.rootsweb.ancestry.com/th/read/GEN-MEDIEVAL/2009-01/...
There is likewise no evidence which indicates that Ermina de Seton was the mother of Sir Christopher de Seton. Rather, it appears Ermina was the step-mother of Sir Christopher de Seton. There is an abstract of a petition of Ermina de Seton in the online National Archives catalogue, which is copied below. In the petition, Ermina de Seton mentions Christopher de Seton by name but does not call him her son. Rather, she refers to him only as the son and heir of her late husband, John de Seton. The same is true of Calendar of Patent Rolls, 1301–1307 (1898): 465, where Christopher de Seton is identitied as the son and heir of John de Seton, but Ermina is not called his mother (see http://sdrc.lib.uiowa.edu/patentrolls/e1v4/body/Edward1vol4page0465...).
In summary, we find that Christian de Ireby died childless in 1305. She was not the mother of Ermina, wife of John de Seton. And, Ermina de Seton was evidently not the mother of Sir Christopher de Seton.
Best always, Douglas Richardson, Salt Lake City, Utah
+ + + + + + + + + + + + Sources: National Archives Catalogue (http:// www.nationalarchives.gov.uk/catalogue/displaycataloguedetails.asp?C...)
http://freepages.genealogy.rootsweb.ancestry.com/~mainegenie/SETON.htm
6I. CHRISTOPHER (ADAM 1, ROBERT 2, ADAM 3, JOHN 4) b.c.1278 m. CHRISTIAN BRUCE (m.1. Gratney, Earl of Mar, 3. 1326 Sir Andrew Moray of Bothwell, d. 1357, bur. Dunfermline) executed Oct. 1306
Sir Christopher was the son of Sir John de Seton, of Seton, Yorkshire and not the son of the above Alexander as stated by Anderson as "Cristofor son and heir of John de Seton" did homage for his father's lands on 24 Oct. 1299 at Westminster. Master Richard de Havering, the Escheator ultra, was ordered to restore his land.(1) On 13 June 1300 the King ordered the same Escheator to partition the lands, which had been held in dower by Sarra, widow of Richard de Levyngton, between Richard de Kirkbride, Adam de Twynham, Gilbert de Sutheyke, and Walter de Corry, nephews and heirs of the said Richard, and Maude de Karrigg and Emma de Karrigg, sisters, neices and co-heirs, and Christopher de Seton. The inheritance was to be divided into six parts, but the share of Maude and Emma, who were staying in Scotland with the Scots, enemies and rebels to the King, was to be retained in the King's hand.(3)
A document dated 3 Mar. 1304 confirmed that "Christopher de Setone" was in the king's service and "will remain with him throughout the war".(2) On 12 Oct. 1305 Richard Oysel, the Escheator ultra, was ordered to hand over to Christopher de Seton the vills of Gamelsby and Unthank in Cumberland, which is father, John de Seton, had granted in tail to Robert de Brus and Christina, his wife, who had died without heirs.(4) He evidently changed sides and Christopher was subsequently a supporter of his brother-in-law, Robert the Bruce and was at his coronation at Scone 27 Mar. 1306. King Edward seized his lands and granted them in Apr. 1306 to Edmund de Mauley in fee for his good service.(5) At the battle of Methven 13 June 1306 he rescued King Robert when he was thrown from his horse by Philip de Mowbray. Christopher afterwards locked himself up in Loch Doon Castle and after its surrender he was hanged, drawn and quartered by order of Edward I at Dumfries along with his brothers John and Humphrey.
Does anyone have any suggestions as to this mystery?