Barons and castellans · The Papal State: the pope's own lands · as at first light, 1 January 1200

Poli

A middling baron of the hills where the Sabina meets the Prenestine country, with a cluster of castles round Poli and Guadagnolo.

On 1 January 1200 Oddone still holds them, but he is sliding into debt, and the pope's brother is the creditor waiting: in 1203 the castles go to Riccardo Conti as a pledge, and the quarrel over them sets Rome alight.

Who he is

Name
Oddone (Ottone) of Poli
Title
Lord of Poli and its castles on the edge of the Sabina and the Prenestine hills
Since
Not pinned (the family held Poli from 1157)
Born
Not pinned
Family
The Oddoni, lords of Poli since 1157 (it.wikipedia, Poli)
Confidence
medium

it.wikipedia (Poli): Poli passed to the abbey of San Paolo fuori le mura in 1081; the Oddoni held it from 1157; Guadagnolo was a possession of 'Oddone III'. Gregorovius and the DBI on Riccardo Conti: the lord of Poli, deep in debt, pledged his fiefs to Riccardo Conti early in 1203; he then tried to take them back, his kin roused the Romans, and the 'nine Poli castles' passed to the Conti. it.wikipedia dates the Conti takeover to 1200, the DBI to 1203.

Overlord

The pope.

What it holds

  • Poli
  • Guadagnolo
  • Other castles of the lordship (Gregorovius counts nine Poli castles in 1203; names not pinned here)

How it was acquired

From 1157.

Allies and rivals

The Orsini later back him against Riccardo Conti; his kin rouse the Romans in 1203.

How things stand that morning

Holds Poli and its castles, in debt.

Wealth

Hill pastures and woods; the road from Tivoli to Palestrina.

Military

Castle knights; no numbers.

Threats

  • Debt
  • Riccardo Conti

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. Early 1203 (DBI; 1200 in it.wikipedia)Oddone pledges Poli and its castles to Riccardo Conti; his attempt to recover them leads to the Roman rising of 1203.Depends on: His debts. Stopped by: A rich ally paying his debts.

Places of note

  • Poli: The family's castle
  • Guadagnolo: Mountain castle of the lordship

Where the sources disagree

  • it.wikipedia (Poli) dates the Conti takeover to 1200; the DBI on Riccardo Conti to early 1203, with investiture before October 1204.

Evidence: The holder's name comes from the 1203 affair; his lordship in 1200 is inferred from the family's tenure from 1157.

On the map: The nine castles are not named in the sources checked; the block is a rough guess around Poli and Guadagnolo.

Primary sources for Papal State

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.

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

Sources and studies

  1. Poli (it.wikipedia)
  2. Riccardo Conti (Treccani, Dizionario Biografico)
  3. F. Gregorovius, Storia della città di Roma nel medio evo, vol. 5

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