Should Elizabeth (Erghum) Carthorpe be added as a daughter of Sibyl (FitzHenry) Erghum?

Question

I'm trying to look into aspects of this family, and it looks as though Elizabeth Ergham/Erghom/Erghum should be a full sister of Sibil, rather than half.

I'm still looking for a good solid academic source to confirm this, but the suggestion is certainly that the two sisters shared Sibyl FitzHenry as a mother.

I don't have pre-1500 rights so can't change anything anyway, but I'd welcome the views of others.

This may shed some light, but I can't access it here in the UK.

There may also be something in The Complete Peerage, by Cokayne, Vol. V.

On 14 May 2018 Anonymous Horace wrote on Erghum-2:

Could be sister of Sibyl [[Erghum-1]]

Comments

I suggest you replace one of your tags with pre1500 to get the attention of that project.

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Thank you!

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Also added the medieval tag to attract attention of Medieval project members.

Answer 1

No Elizabeth is the daughter and heir of Sir Richard de Erghum not William Erghum as was discussed in the G2G question on her husband John Carthorpe.

I don't think we have found the primary evidence for this, but certainly later secondary sources confirm Sir Richard as her father.

William as the father is in an early genealogy for the Fairfax family (which I will have to find again) and this is repeated in Burke's History of the Commoners, but Burke's is generally unreliable for pre-1500.

At the very least I think this needs further investigation before making any changes.

Comments

The Complete Peerage, 2nd ed., vol. 5, pp. 415-416 mentions the will of Sir William de Erghum of Erghum, dated 26 Feb 1346/47 and proved 2 April 1347, which only mentions 3 sons, William, Ralph and Aucher, and his wife Sibyl FitzHenry as executrix.  

Not sure how Richard fits into this family group though, unless he is the son named Ralph?  Or perhaps there were several branches of the Erghum family?

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Of course John - I'd missed that post! For the benefit of anyone else reading this:

John's two wives:  "by his first wife Elizabeth, daughter and heir of Sir Richard de Ergham, Eustachia, wife of Sir Richard Fairfax; and by his second wife Alice, daughter of William Hungate (who married 2 William de Burgh and died his widow in 1453) (Test. Ebor II, p. 167) Elizabeth, wife of William Ascough of Ascough, near Bedale, son and heir of the judge.