John IV of Gaeta

John IV (died April or August 1012) was the eldest son of John III of Gaeta and Emilia.^[1] He was appointed co-duke in 991 while still young (he was a minor even in 994). John succeeded his father in 1008 or 1009 and ruled for a brief four years.

John married Sichelgaita, daughter of John IV of Naples and sister of Sergius IV. He left an infant son, John V,^[1] under the regency of his mother, Emilia. His brother Leo fought for the regency and his cousin Leo tried to usurp the throne from the young John V.

References

^ ^a ^b Skinner 1995, Figure 1.1.

Sources

Caravale, Mario (ed). Dizionario Biografico degli Italiani LV Ginammi – Giovanni da Crema. Rome, 2000.
Skinner, Patricia (1995). Family Power in Southern Italy: The duchy of Gaeta and its neighbours, 850-1139. Cambridge University Press.

Preceded by John III	Duke of Gaeta 1008–1012	Succeeded by John V

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[FOOTNOTESkinner1995Figure_1.1-1] Skinner 1995, Figure 1.1.

[1]