Property talk:P9139

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first family name in Portuguese name
first (generally maternal) family name in Portuguese names

Represents	family name (Q101352), has this first Portuguese family name (Q105592878), matriname (Q6787830)
Data type	Item
Domain	human (Q5)
Example	José Saramago (Q37060) → de Sousa (Q55739047) José Rodrigues dos Santos (Q2272484) → Rodrigues (Q19540914) Miguel Sousa Tavares (Q1567582) → de Sousa (Q55739047)
See also	second family name in Spanish name (P1950), birth name (P1477), Scandinavian middle family name (P6978), Philippine middle name (P12330)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties By value of property Most statements Fewest statements Most sitelinks Most linked wikis Total of sitelinks on items Most identifiers Fewest identifiers Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Database reports/Constraint violations/P9139 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 1,633 Main statement 1,630 99.8% of uses Qualifier 3 0.2% of uses
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Type “human (Q5)”: item must contain property “instance of (P31)” with classes “human (Q5)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P9139#Type Q5, SPARQL

Value type “family name (Q101352)”: This property should use items as value that contain property “instance of (P31)”. On these, the value for instance of (P31) should be an item that uses subclass of (P279) with value family name (Q101352) (or a subclass thereof). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P9139#Value type Q101352, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P9139#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P9139#Scope, SPARQL