Robert de Ferrers, 6th Earl of Derby (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Robert de Ferrers, 6th Earl of Derby" in English language version.

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Global rank English rank

2^nd place

2^nd place

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187^th place

1british-history.ac.uk

903^rd place

521^st place

6^th place

6^th place

archive.org

Collections for a history of Staffordshire - Plea Rolls of the reign of Edward I.Staffordshire Record Society. Birmingham, England: Houghton and Hammond. 1885. pp. 96–97. Alianora [Eleanor] the widow of Robert de Ferrars [Ferrers] vs Henry de Grenley, Geoffrey de Warilowe (de Grenleye) and others.

british-history.ac.uk

Lysons & Lysons 1817, pp. 3–11. Lysons, Daniel; Lysons, Samuel (1817). "General history: Historical events". Magna Britannia: volume 5: Derbyshire. Institute of Historical Research. pp. 3–11. {{cite web}}: Missing or empty |url= (help)

doi.org

Maddicott 2004. Maddicott, J.R. (2004). "Ferrers, Robert de, sixth earl of Derby (c. 1239–1279". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/9366. (Subscription or UK public library membership required.)

oxforddnb.com

Maddicott 2004. Maddicott, J.R. (2004). "Ferrers, Robert de, sixth earl of Derby (c. 1239–1279". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/9366. (Subscription or UK public library membership required.)