JI
Source-basedFalling
John IV of Naples
Italian duke
- Fame38.4
- Momentum0.0
- Wikipedia120
Lived 977–1004, aged 27
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Summary
Updated 2026-06-14
John IV was the mostly absentee duke of Naples from 997 to after 1002. He was the son and successor of Sergius III. John IV originally recognised the suzerainty of the Byzantine Emperor.
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The six component signals behind the Fame score, and their ranks across the leaderboards.
Fame
Falling38.4
Composite of search demand, mentions, audience & graph footprint.
Score components
Historical8.1
Source confidence50.0
Completeness25.0
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Sources
- Іоанн IV (неаполітанський дука)Low confidencewikipedia · uk.wikipedia.org
- Ιωάννης Δ΄ της ΝεαπόλεωςLow confidencewikipedia · el.wikipedia.org
- John IV of NaplesLow confidencewikipedia · en.wikipedia.org