Jabarkan Kehidupan awal dari Robert Devereux, Earl Essex Kedua

Devereux dilahirkan pada 10 November 1565 di Netherwood di dekat Bromyard, Herefordshire, dari pasangan Walter Devereux, Earl Essex Pertama, dan Lettice Knollys. Nenek buyut dari pihak ibunya adalah Mary Boleyn yang merupakan saudara perempuan Anne Boleyn, ibu kandung Ratu Elizabeth I.

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