Home›1251 deaths›Viola, Duchess of Opole🌐EnglishEnglishDeutschEspañolFrançaisNederlandsPolskiSvenskaРусский中文EntityQ7932997· pop 9· linked from 25 articlesViola, Duchess of OpoleBulgarian duchessMusic · MusicBrainzTypeGroupOriginUnited Statesjazzvocal jazzDiscographyLaughing at Life2017Official sitevia MusicBrainz · CC0Recent publications · Crossref5 total works indexedRapid object detection using a boosted cascade of simple features · cited 10,218xRobust Real-Time Face Detection · 2004 · cited 9,891xGuidelines for the use and interpretation of assays for monitoring autophagy (3rd edition)Available in 8 languagesDeutschРусскийBulgarianCzechGreekPolskiSvenskavia Wikidata sitelinks · CC0ConnectionsBulgariaCountryPolishEntityCategories1251 deaths13th-century Bulgarian people13th-century Bulgarian women13th-century duchesses consort13th-century Polish people13th-century Polish women13th-century regents13th-century women regentsAccuracy disputes from August 2012Piast dynastyYear of birth unknown