Marfa Sobakina
E375782
Marfa Sobakina was the third wife of Russian Tsar Ivan IV (Ivan the Terrible), briefly serving as Tsaritsa of Russia before dying under mysterious circumstances shortly after their marriage.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Marfa Sobakina canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T3640318 — 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: Marfa Sobakina Context triple: [Ivan IV the Terrible, spouse, Marfa Sobakina]
-
A.
Shubskaya
Shubskaya is a Russian surname most notably associated with Anastasia Shubskaya, a film producer and the wife of hockey star Alexander Ovechkin.
-
B.
Kashirina
Kashirina is a Russian surname most notably borne by Varvara Vasilyevna Kashirina.
-
C.
Kuntsevskaya
Kuntsevskaya is a Moscow Metro station on the Big Circle Line serving the Kuntsevo District in western Moscow.
-
D.
Govardeyskaya
Govardeyskaya is a Moscow Metro station on the Kalininsko–Solntsevskaya line.
-
E.
Lopukhina
Lopukhina is a Russian noble family name historically associated with Eudoxia Lopukhina, the first wife of Tsar Peter the Great.
- 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: Marfa Sobakina Target entity description: Marfa Sobakina was the third wife of Russian Tsar Ivan IV (Ivan the Terrible), briefly serving as Tsaritsa of Russia before dying under mysterious circumstances shortly after their marriage.
-
A.
Shubskaya
Shubskaya is a Russian surname most notably associated with Anastasia Shubskaya, a film producer and the wife of hockey star Alexander Ovechkin.
-
B.
Kashirina
Kashirina is a Russian surname most notably borne by Varvara Vasilyevna Kashirina.
-
C.
Kuntsevskaya
Kuntsevskaya is a Moscow Metro station on the Big Circle Line serving the Kuntsevo District in western Moscow.
-
D.
Govardeyskaya
Govardeyskaya is a Moscow Metro station on the Kalininsko–Solntsevskaya line.
-
E.
Lopukhina
Lopukhina is a Russian noble family name historically associated with Eudoxia Lopukhina, the first wife of Tsar Peter the Great.
- F. None of above. chosen
Statements (26)
| Predicate | Object |
|---|---|
| instanceOf |
Tsaritsa of Russia
ⓘ
noblewoman ⓘ |
| associatedWith |
Ivan the Terrible
ⓘ
linked to:
Ivan IV the Terrible
|
| causeOfDeath | unknown ⓘ |
| countryOfCitizenship | Tsardom of Russia ⓘ |
| dateOfMarriage | 1571 ⓘ |
| deathStatus | deceased ⓘ |
| familyName | Sobakina ⓘ |
| gender | female ⓘ |
| givenName | Marfa ⓘ |
| historicalPeriod | 16th century ⓘ |
| languageOfUse | Russian ⓘ |
| mannerOfDeath | mysterious circumstances ⓘ |
| maritalStatus | married ⓘ |
| monarch |
Ivan IV of Russia
ⓘ
linked to:
Ivan IV the Terrible
|
| notableFor |
being the third wife of Ivan IV of Russia
ⓘ
dying shortly after her marriage to Ivan IV ⓘ |
| positionHeld |
Tsaritsa of Russia
ⓘ
linked to:
Empress of Russia
|
| predecessor | Maria Temryukovna ⓘ |
| realm | Russia ⓘ |
| reignAsConsort | brief ⓘ |
| religion |
Eastern Orthodoxy
ⓘ
linked to:
Eastern Orthodox Christianity
|
| spouse |
Ivan IV of Russia
ⓘ
linked to:
Ivan IV the Terrible
|
| spouseOfMonarchRank | Tsar of Russia ⓘ |
| successor | Anna Koltovskaya ⓘ |
| title | Tsaritsa consort of all Russia ⓘ |
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: Marfa Sobakina Description of subject: Marfa Sobakina was the third wife of Russian Tsar Ivan IV (Ivan the Terrible), briefly serving as Tsaritsa of Russia before dying under mysterious circumstances shortly after their marriage.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.