Sources

1) Source: Exchequer: Augmentation Office: Ancient Deeds, Series B "Grantor: Robert son of Hugh de Chaucumbe and of Amabel, his wife." Date: 13th Century. External Link
https://discovery.nationalarchives.gov.uk/details/r/C4537136. Reference: E 326/11283 (Data from direct source)
2) Source: The Mowbray Estate "Robert de Chaucumba; and Gilbert de Segrave and Amabel his wife. Morrow of Michaelmas, 15 Hen. IIIFinal concord concerning the manors of Dauby, Chaucumba and Aspel and 2 carucates of land in Stroby; Robert has granted to Gilbert and Amabel, in free marriage". External Link
http://discovery.nationalarchives.gov.uk/details/r/04ae5f6a-468e-4f50-91e8-954ed2c40407. Reference: BCM/D/6/1/3 (Data from direct source)
3) Source: Gregory of Stichivall "Gift from Brother Osbert [de Westwelle] Abbot of Stanleg' and the Convent of the same place to Sir Gilbert de Segrave and Amabel his wife, of the benefit of the prayers of the monks of that house and of the whole Order during and after their lives; also one monk for ever to celebrate for the souls of Stephen his father and Roys his mother and Amabel his wife, their ancestors and successors...iii) Roisia Spencer, Amabilia Chawcombe". Dated: 1241-1258. External Link
https://discovery.nationalarchives.gov.uk/details/r/c624a8ff-56d5-479e-b2ff-4ecd570f6983. Reference: DR10/15 (Questionable reliability of evidence)
4) Source: The Mowbray Estate "Juliana late wife of Robert de Chaucumbe; and Ralph Basset and Milicent his wife. Two weeks from Easter, 23 Hen. III". External Link
http://discovery.nationalarchives.gov.uk/details/r/247ed77d-48a3-4cfb-8140-7532ee58dcd8. Reference: BCM/D/6/3/1 (Data from direct source)