Rancho San Pedro
E919704
Rancho San Pedro was one of the first and largest Spanish land grants in California, encompassing much of what is now the South Bay region of Los Angeles County.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Rancho San Pedro canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T11263545 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rancho San Pedro Context triple: [Dominguez Channel, namedAfter, Rancho San Pedro]
-
A.
Rancho Los Encinos
Rancho Los Encinos is a historic 19th-century Mexican land grant and former ranch in the San Fernando Valley that is preserved today as part of Los Encinos State Historic Park.
-
B.
Rancho Jurupa
Rancho Jurupa was a large Mexican-era land grant in what is now Riverside County, California, that played a key role in the early settlement and development of the Jurupa Valley area.
-
C.
Rancho Park
Rancho Park is a residential neighborhood on Los Angeles’s Westside known for its quiet, tree-lined streets, family-friendly character, and proximity to Century City and Westwood.
-
D.
San Benito Valley
San Benito Valley is an agricultural region in central California known for its fertile farmland, ranching, and small-town communities.
-
E.
Rancho Las Flores
Rancho Las Flores was a historic Mexican land grant in what is now Southern California, later incorporated into the larger Rancho Santa Margarita y Las Flores estate.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Rancho San Pedro Target entity description: Rancho San Pedro was one of the first and largest Spanish land grants in California, encompassing much of what is now the South Bay region of Los Angeles County.
-
A.
Rancho Los Encinos
Rancho Los Encinos is a historic 19th-century Mexican land grant and former ranch in the San Fernando Valley that is preserved today as part of Los Encinos State Historic Park.
-
B.
Rancho Jurupa
Rancho Jurupa was a large Mexican-era land grant in what is now Riverside County, California, that played a key role in the early settlement and development of the Jurupa Valley area.
-
C.
Rancho Park
Rancho Park is a residential neighborhood on Los Angeles’s Westside known for its quiet, tree-lined streets, family-friendly character, and proximity to Century City and Westwood.
-
D.
San Benito Valley
San Benito Valley is an agricultural region in central California known for its fertile farmland, ranching, and small-town communities.
-
E.
Rancho Las Flores
Rancho Las Flores was a historic Mexican land grant in what is now Southern California, later incorporated into the larger Rancho Santa Margarita y Las Flores estate.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Mexican land grant
ⓘ
Spanish land grant ⓘ |
| area |
approximately 43,000 acres (confirmed grant size)
ⓘ
approximately 75,000 acres (historical maximum claim) ⓘ |
| borders |
Pacific Ocean
ⓘ
San Pedro Bay NERFINISHED ⓘ |
| confirmedBy |
Governor Diego de Borica
NERFINISHED
ⓘ
Mexican authorities after independence ⓘ United States land commission (after Mexican–American War) NERFINISHED ⓘ |
| containsHistoricSite |
Dominguez Rancho (Rancho Domínguez) historic district
NERFINISHED
ⓘ
Dominguez Rancho Adobe NERFINISHED ⓘ |
| country |
Mexico (historical period of grant confirmation)
NERFINISHED
ⓘ
United States (current location) ⓘ |
| era |
Mexican period in California
ⓘ
Spanish colonial period in California ⓘ early American period in California ⓘ |
| grantedBy | Spanish Crown NERFINISHED ⓘ |
| includesPresentDayArea |
Carson, California
NERFINISHED
ⓘ
Harbor City, Los Angeles NERFINISHED ⓘ Lomita, California NERFINISHED ⓘ Palos Verdes Peninsula (parts, historically disputed) NERFINISHED ⓘ San Pedro, Los Angeles NERFINISHED ⓘ Torrance, California (parts) ⓘ Wilmington, Los Angeles NERFINISHED ⓘ |
| languageOfName | Spanish ⓘ |
| legalStatusChange | subject to U.S. land claim adjudication after Treaty of Guadalupe Hidalgo ⓘ |
| locatedIn |
Alta California (historical)
NERFINISHED
ⓘ
California, United States ⓘ
surface form:
California
Los Angeles Basin NERFINISHED ⓘ Los Angeles County NERFINISHED ⓘ San Pedro Bay area NERFINISHED ⓘ South Bay region of Los Angeles County NERFINISHED ⓘ Southern California ⓘ |
| namedAfter | San Pedro (Saint Peter) NERFINISHED ⓘ |
| originalGrantee | Juan José Domínguez NERFINISHED ⓘ |
| originalGrantYear | 1784 ⓘ |
| partOf |
Mexican territory of Alta California
NERFINISHED
ⓘ
Spanish colonial province of Alta California ⓘ |
| presentDayJurisdiction |
City of Los Angeles (port and harbor communities)
NERFINISHED
ⓘ
multiple incorporated cities in Los Angeles County ⓘ |
| relatedTo |
Port of Los Angeles (developed on former rancho lands)
NERFINISHED
ⓘ
urban development of Los Angeles South Bay ⓘ |
| significance |
one of the first land grants in Alta California
ⓘ
one of the largest Spanish land grants in California ⓘ |
| successorFamily |
Del Amo family (through inheritance and marriage)
NERFINISHED
ⓘ
Domínguez family NERFINISHED ⓘ |
| treatyRelevant | Treaty of Guadalupe Hidalgo NERFINISHED ⓘ |
| usedFor |
agriculture
ⓘ
cattle ranching ⓘ grazing land ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Rancho San Pedro Description of subject: Rancho San Pedro was one of the first and largest Spanish land grants in California, encompassing much of what is now the South Bay region of Los Angeles County.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.