Ivan Vladislav of Bulgaria
Ivan Vladislav  ruled as emperor (tsar) of Bulgaria from August or September 1015 to February 1018.
The year of his birth is unknown; he was born at least a decade before 987, but probably not much earlier than that.
Saved from death by his cousin Gavril Radomir, the Bulgarian Emperor, in 976, Ivan Vladislav murdered him in October 1015 and seized the Bulgarian throne.
Due to the desperate situation of the country following the decades-long war with the Byzantine Empire, and in an attempt to consolidate his position, he tried to negotiate truce with the Byzantine emperor Basil II.
After the failure of the negotiations he continued the resistance, attempting unsuccessfully to push the Byzantines back.
During his period of rule, Ivan Vladislav tried to strengthen the Bulgarian army, reconstructed many Bulgarian fortresses and even carried out a counter-offensive, but he died at the Battle of Dyrrhachium in 1018.
After his death his widow, Empress Maria, the Patriarch and most of the nobility finally surrendered to Basil II, who soon suppressed the last remnants of resistance and brought about the end of the First Bulgarian Empire.
Ivan Vladislav left a mixed heritage, varying from a reputation of being a ruthless murderer to a hero defending his country as best as he could.
The descendants of Ivan Vladislav entered the Byzantine nobility and rose to the highest ranks of the hierarchy.
Two women of his family became empresses of the Byzantine Empire and others became military commanders or high-ranking officials.
He was an ancestor of the Byzantine emperor John II Komnenos.
Euphrosina Heldina von Dieffenau
Euphrosina Heldina von Dieffenau, or" Heldin"( died 1636), was a Swedish courtier.
Originally from Germany, she became courtier to Catherine of Sweden, Countess Palatine of Kleeburg in 1590.
After the death of Catherine's mother, Maria of the Palatinate- Simmern, she became the lady- in- waiting, nurse and in practice foster mother of Catherine.
She were the confidant of Catherine and the two of them had a close relationship for the rest of their life, sometimes by letters, which are preserved.
She married a German officer in Swedish service, but remained in the service of Catherine also after Catherine's marriage as her Mistress of the Robes.
She was described as educated and seen as a role model for female nobles in this regard, could speak Latin and was given the task to practice reading and prayer with the heir to the throne, Gustav II Adolf of Sweden, and converse with foreign ambassadors.
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."
Smilets of Bulgaria
Smilets reigned as tsar of Bulgaria from 1292 to 1298.
The date of his birth is unknown.
Kiril, Prince of Preslav
Prince Kyril of Bulgaria, Prince of Preslav (Kyril Heinrich Franz Ludwig Anton Karl Philipp; 17 November 1895 – 1 February 1945) was the second son of Ferdinand I of Bulgaria and his first wife Marie Louise of Bourbon-Parma.
He was a younger brother of Boris III of Bulgaria and a prince regent of the Kingdom of Bulgaria from 1943 to 1944.
Keratsa of Bulgaria
Keratsa-Maria of Bulgaria( 1348–1390) was Princess of Bulgaria during the Second Bulgarian Empire and Empress of Byzantine Empire.
She was the daughter of Tsar Ivan Alexander of Bulgaria and his second wife, a converted Jew, Theodora.
Catherine of Bosnia, Grand Princess of Hum
" For other people named Catherine of Bosnia, see Catherine of Bosnia( disambiguation)."
Catherine of Bosnia( Bosnian:" Katarina Kotromanić Stjepanova")( b. 1294- d. 1355) was sister of Stephen II, Ban of Bosnia.
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.
Catherine of Bulgaria
Catherine of Bulgaria (Bulgar: Екатерина, "Ekaterina"; died after 1059) was Empress-consort to Byzantine emperor Isaac I Komnenos and co-regent of Constantine X for a period after the abdication of her spouse in 1059.
She was a daughter of Ivan Vladislav of Bulgaria and his wife Maria, and thus a sister of Presian and Alusian.
Catherine was also a paternal aunt of Maria of Bulgaria.
Catherine of Cleves (1417–1479)
Catherine of Cleves (25 May 1417 – 10 February 1479) was Duchess of Guelders by marriage to Arnold, Duke of Guelders.
She acted as regent of Guelders during the absence of her spouse in 1450.
The Hours of Catherine of Cleves was commissioned for her.

Question: What is the date of death of Catherine Of Bulgaria's father?
Answer: 1018