BOLESLAW of Breslau, son of HEINRICH V "the Fat" Duke of Liegnitz [Piast] & his wife Elźbieta of Poland [Piast] (23 Sep 1291-21 Apr 1352, bur Lüben). The Annales Wratislavienses record the birth "1291 in crastino sancti Mauricii" of "Boleslaus filius Heinrici V ducis Slezie"[260]. He succeeded in 1311 as BOLESLAW III Duke of Breslau, Liegnitz and Brieg. Following Jan King of Bohemia's invasion of Silesia in early 1327, Duke Boleslaw swore allegiance to Bohemia at Breslau in [20 Apr/10 May] 1329[261]. The Epytaphia ducum Slezie record the death "1352 XI Kal Mai" of "Bolezlaus Legenitzensis et Brigensis, filius Heynrici Ventrosi", specifying that he was buried in Lüben[262].
m firstly ([1308/10]) MARGARETA of Bohemia, daughter of WENZEL II King of Bohemia & his first wife Guta of Austria [Habsburg] ([Apr/May] 1296-Grez 7/8 Apr 1322, bur Prague Königsaal). The Chronica principum Polonie records that "Boleslao" married "dominam Margaretham, filiam domini Wenceslai regis Bohemie"[263]. The Chronica Pragensis (Chronicon Francisci) records that the wives of "Regis…Iohannis et Ducis Wratislauiensis" were "Regis Wencezslai filiæ"[264]. The Epytaphia ducum Slezie record the death "1322 VI Id Apr" of "Margaretha uxor eius [=Bolezlai] filia Wenzesclai regis Bohemie"[265]. The Chronica Pragensis (Chronicon Francisci) records the death "in Grecz" in 1322 of "Domina Margaretha, Wencezslai Sexti Regis Boemiæ filia" and "Boleslai Ducis Sleziæ de Lignycz" and her burial "in Aula Regia"[266].
m secondly (1326) KATHARINA Šubić, daughter of MLADEN [II] Šubić & his wife --- (-[18 Feb/5 Mar] 1358). The Chronica principum Polonie names "Katherina…de Crawacia nata et de Ungaria ducta" as second wife of Boleslaw[267]. The primary source which confirms her parentage more precisely has not yet been identified.
Boleslaw & his first wife had three children:
WENZEL ([1310/18]-2 Jun 1364). The Chronica principum Polonie names "dux Wenceslaus filius senior" of Boleslaw[268]. He succeeded his father in 1352 as WENZEL I Duke of Liegnitz. m ([1338/40]) ANNA von Teschen, daughter of KASIMIR I Duke of Teschen [Piast] & his wife Euphemia of Mazovia [Piast] ([1325]-1367). The Chronica principum Polonie records that "Wenceslaus" married "ducis Theschnensis…filiam"[269]. The primary source which confirms her name has not yet been identified.
LUDWIG ([1313/21]-[6/23] Dec 1398). The Chronica principum Polonie records that "Ludwicus" was "dux Wenceslaus…fratri"[279]. He succeeded as LUDWIG I Duke of Brieg.
NIKOLAUS (-after 7 Apr 1322). The primary source which confirms his parentage has not yet been identified.
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