Roger III of Apulia
Italo-Norman duke

Roger III (1118 – 2 or 12 May 1148) was the eldest son of King Roger II of Sicily and Elvira of Castile. He was the Duke of Apulia from 1134 until his death.
Roger's first public act took place at Melfi in 1129, where, though still a child, he accepted the fealty of some rebellious barons along with his father and his younger brother Tancred. His father was crowned king of Sicily the next year on 25 December. It is possible that Roger received the Duchy of Apulia at this time. He had certainly received it from his father by 1134. He was perhaps put under the tutelage or guardianship of Robert of Selby. He took part in his father's campaigns beginning in 1137, when he distinguished himself in the campaign against Ranulf of Alife, whom Pope Innocent II and the Emperor Lothair II had invested as rival duke of Apulia. His first major engagement was the Battle of Rignano on 30 October; a battle in which more experienced warriors, like his father, fled and some, like Duke Sergius VII of Naples, died. Roger's bravery, and success in the first charge, at Rignano solidified his martial reputation early.
Begin with the source’s own compact description: “Roger III of Apulia” is italo-Norman duke. The dossier treats that line as a proposition to test through Roger, Apulia and Italo-Norman, not as a finished interpretation.
Why this record matters
The phrase “italo-Norman duke” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 20, 2026. The linked authority identifier is Q1373749. VIAF identifies the subject as 8917162723680061290003. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1118, 1148, 1134 and 1129.
A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Roger III of Apulia”, its source revision and the description used here.
- Expand the search: follow Roger III of Apulia primary sources, Roger III of Apulia archive and Roger research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Roger III of Apulia”?
- Which institution is responsible for the underlying evidence?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Roger III of Apulia” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.