Siemowit of Bytom
Siemowit of Bytom(( 1292 – aft. 1 July 1342), was a Duke of Bytom during 1312 – 1316 and Duke of Gliwice from 1340 until his death.
He was the third son of Duke Casimir of Bytom by his wife Helena.
Ladislaus of Salzburg
Władysław of Salzburg, also known as Władysław of Wrocław or Władysław of Silesia( – 27 April 1270), a member of the Silesian Piasts, was co-ruler in the Duchy of Wroclaw since 1248.
He served as chancellor of King Ottokar II of Bohemia from 1255 and was elected Bishop of Bamberg in 1257 and Bishop of Passau in 1265.
Władysław became Prince- Archbishop of Salzburg in the same year, and from 1268 also served as administrator of the Wrocław diocese.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
George of Bytom
George of Bytom( b. 1300- d. by 1327), was a Duke of Bytom since 1316 until his death( as co-ruler of his brother).
He was the fourth son of Duke Casimir of Bytom by his wife Helena.
Thomas Scott (diver)
Thomas Scott( 1907- date of death unknown) was an English diver.
Władysław of Bytom
Władysław of Bytom (1277/83 – around 8 September 1352), was a Duke of Koźle during 1303-1334, Duke of Bytom from 1316, Duke of Toszek since 1329 and Duke of Siewierz during 1328–1337.
He was the second son of Duke Casimir of Bytom by his wife Helena.
Bolesław of Bytom
Bolesław of Bytom( 1330 –) was a duke of Koźle from 1347 and Duke of Bytom since 1352 until his death.
He was the second son of Duke Władysław of Bytom but the eldest by his second wife Ludgarda, daughter of Henry II the Lion, Prince of Mecklenburg and Lord of Stargard.
Etan Boritzer
Etan Boritzer( born 1950) is an American writer of children ’s literature who is best known for his book" What is God?" first published in 1989.
His best selling" What is?" illustrated children's book series on character education and difficult subjects for children is a popular teaching guide for parents, teachers and child- life professionals.
Boritzer gained national critical acclaim after" What is God?" was published in 1989 although the book has caused controversy from religious fundamentalists for its universalist views.
The other current books in the" What is?" series include
What is Love?,
What is Death?,
What is Beautiful?,
What is Funny?,
What is Right?,
What is Peace?,
What is Money?,
What is Dreaming?,
What is a Friend?,
What is True?,
What is a Family?,
What is a Feeling?"
The series is now also translated into 15 languages.
Boritzer was first published in 1963 at the age of 13 when he wrote an essay in his English class at Wade Junior High School in the Bronx, New York on the assassination of John F. Kennedy.
His essay was included in a special anthology by New York City public school children compiled and published by the New York City Department of Education.
Boritzer now lives in Venice, California and maintains his publishing office there also.
He has helped numerous other authors to get published through" How to Get Your Book Published!" programs.
Boritzer is also a yoga teacher who teaches regular classes locally and guest- teaches nationally.
He is also recognized nationally as an erudite speaker on" The Teachings of the Buddha."
Casimir of Bytom
Casimir of Bytom  (1253/57 – 10 March 1312) was a Duke of Opole during 1282–1284 (with his brother as co-ruler) and Duke of Bytom from 1284 until his death.
He was the second son of Władysław, Duke of Opole–Racibórz, by his wife Euphemia, daughter of Władysław Odonic, Duke of Greater Poland.
Casimir of Koźle
Casimir of Koźle( ca. 1312 – by 2 March 1347) was a Duke of Koźle from 1336 until his death.
He was the eldest son of Duke Władysław of Bytom the only one by his first wife Beatrix, daughter of Otto V the Long, Margrave of Brandenburg – Salzwedel.
Casimir was born between 1309 and 1316, probably ca. 1312.

Question: When did Władysław Of Bytom's father die?