Counts · Kingdom of Sicily under the regency · as at first light, 1 January 1200

Marsico

The county of Marsico holds the upper valley of the Agri in the southern Basilicata, on the high road from the Vallo di Diano in the Principato toward the Ionian plain, under a line of counts sprung from the Hauteville house.

Count William is last seen in 1192; his nephew Silvester is count by March 1200, when he confirms and enlarges the family's gifts to a monastery called Bussema. Marsico also has its own bishop, a suffragan of Salerno. Nothing places the county in the war of the regency that winter.

Who he is

Name
Silvester, count of Marsico (most likely); his uncle Count William is last recorded in November 1192
Title
Count of Marsico (comes Marsicanus)
Since
Not pinned: after November 1192 and by March 1200
Born
Not pinned
Family
The counts of Marsico, descended from Count Silvester (died about 1161), a kinsman of the Hauteville kings through Geoffrey, count of Ragusa, a son of Count Roger I of Sicily (FMG)
Confidence
medium

FMG (Neapolitan nobility, counts of Marsico): William, count of Marsico, son of Count Silvester, appears in charters of 1175 and 15 August 1176 and in November 1192, when with his wife Stefania (Alfana) he gave property to a monastery the charter calls Bussema; his brother Geoffrey died before him; Geoffrey's son Silvester, count of Marsico, confirmed and increased the gifts to the same monastery by a charter of March 1200 (known only in summary). The nearest dated evidence on either side of 1 January 1200 is November 1192 (William) and March 1200 (Silvester).

Overlord

The king, under the regency

What it holds

  • Marsico (Marsico Nuovo) with its castle; the bishop of Marsico sits in the town
  • The upper Agri valley (extent not pinned)
  • Patronage of the monastery called Bussema in the charters (location not pinned)

How it was acquired

Inherited: the county has been in this family since Count Silvester in the mid twelfth century (FMG).

Allies and rivals

Neighbours: the Sanseverino and the other counts of the Principato across the Vallo di Diano (the cam sheet's records); the county of Tricarico and the archbishop of Acerenza to the north-east; the bishop of Marsico in the town itself.

How things stand that morning

Ground of the regency (realm sicily). No German captain or campaign is recorded in the Agri valley in the winter of 1199-1200. Across the Vallo di Diano to the west lies the Principato, where Salerno sided with Diepold in 1199 (cam's records).

Wealth

Pasture and grain of the upper Agri, transhumance routes between the mountains and the Ionian plain, the road from the Principato to the Ionian coast.

Military

The castle of Marsico and the castles of the valley; knight service to the crown. No figures.

Threats

  • The war on the Principato side spilling across the Vallo di Diano
  • A disputed succession between William's and Geoffrey's lines (none recorded)

What the year holds

What happened next, if nothing in play changes it. Each event carries what it depends on and what would stop it.

  1. March 1200Count Silvester confirms and enlarges his family's gifts to the monastery called Bussema (FMG, charter summary).Depends on: Silvester holding the county in peace. Stopped by: War in the valley or a challenge to his title.

Places of note

  • Marsico: County seat, castle and bishop's see

Where the sources disagree

Evidence: The counts are known from charter summaries collected by FMG; William's death date and the exact start of Silvester's tenure are not pinned, and the county's bounds are not documented in the sources checked.

On the map: Approximate: the county's castles and villages in 1200 are not listed in the sources checked; the block is the upper Agri round Marsico.

Primary sources for Sicily

Chronicles, registers, sagas and inscriptions written in or near 1200 that cover this entry. Each has its own page with editions, translations and where to read it.

7 more in the sources library for Southern Italy and the Islands.

Sources and studies

  1. Neapolitan nobility, FMG Medieval Lands

Last revised 4 November 2026. Published 4 November 2026. Suggest a correction on the OMNIA Discord.