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.
Richard T. Jones
Richard Timothy Jones( born January 16, 1972) is an American actor.
Jones is best known for his portrayals of Laveinio in the dramatic film" The Wood"( 1999) and Mike of the dramatic films" Why Did I Get Married?"( 2007) and" Why Did I Get Married Too?"( 2010).
He is also well known for his role as Bruce Van Exel, court services officer on the CBS television series" Judging Amy" that aired from 1999 to 2005.
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.
Irene Komnene Doukaina
Irene Komnene Doukaina or Eirene Komnene Doukaina was an Empress of Bulgaria during the Second Bulgarian Empire and Byzantine princess.
She was the third wife of tsar Ivan Asen II of Bulgaria.
She was the mother of tsar Michael Asen I of Bulgaria.
Maria Palaiologina Kantakouzene
Maria Palaiologina Kantakouzene  was a Byzantine princess, niece of emperor Michael VIII Palaiologos, and empress consort of Constantine Tikh of Bulgaria and Ivaylo of Bulgaria.
She is the most powerful Empress of Bulgaria, ruling as a regent from 1271 to 1279.
Ana-Neda
Ana- Neda( Bulgarian and; fl. 1323- 1324) was the Empress consort of Bulgaria briefly in 1323- 1324 as the spouse of" Despot of Vidin" Michael Shishman who was elected as Emperor of Bulgaria in 1323.
She was the daughter of Serbian King Stefan Uroš II Milutin and Princess Ana Terter, daughter of George I of Bulgaria.
From the marriage with Michael, they had three sons, one of whom was Ivan Stephen of Bulgaria, later briefly the Emperor of Bulgaria( 1330 – 1331).
Desislava of Bulgaria
Desislava of Bulgaria was daughter of Tsar Ivan Alexander of Bulgaria and his second wife Theodora, a converted Jewish woman.
Samuel of Bulgaria
Samuel (also Samuil; , ; , ; Old Church Slavonic:) was the Tsar ("Emperor") of the First Bulgarian Empire from 997 to 6 October 1014.
From 977 to 997, he was a general under Roman I of Bulgaria, the second surviving son of Emperor Peter I of Bulgaria, and co-ruled with him, as Roman bestowed upon him the command of the army and the effective royal authority.
As Samuel struggled to preserve his country's independence from the Byzantine Empire, his rule was characterized by constant warfare against the Byzantines and their equally ambitious ruler Basil II.
In his early years Samuel managed to inflict several major defeats on the Byzantines and to launch offensive campaigns into their territory.
In the late 10th century, the Bulgarian armies conquered the Serb principality of Duklja and led campaigns against the Kingdoms of Croatia and Hungary.
But from 1001, he was forced mainly to defend the Empire against the superior Byzantine armies.
Samuel died of a heart attack on 6 October 1014, two months after the catastrophic battle of Kleidion.
His successors failed to organize a resistance, and in 1018, four years after Samuel's death, the country capitulated, ending the five decades-long Byzantine–Bulgarian conflict.
Samuel was considered "invincible in power and unsurpassable in strength".
Similar comments were made even in Constantinople, where John Kyriotes penned a poem offering a punning comparison between the Bulgarian Emperor and Halley's comet, which appeared in 989.
During Samuel's reign, Bulgaria gained control of most of the Balkans (with the notable exception of Thrace) as far as southern Greece.
He moved the capital from Skopje to Ohrid, which had been the cultural and military centre of southwestern Bulgaria since Boris I's rule, and made the city the seat of the Bulgarian Patriarchate.
Because of this, his realm is sometimes called the "Western Bulgarian Empire".
Samuel's energetic reign restored Bulgarian might on the Balkans, and although the Empire was disestablished after his death, he is regarded as a heroic ruler in Bulgaria,
Samuel is considered also a heroic ruler in North Macedonia; (see the section Nomenclature).
Kosara
Kosara or Cossara was a Bulgarian noblewoman, related to Tsar Samuel of Bulgaria, who was married to Prince Jovan Vladimir of Duklja.
Lamman Rucker
Lamman Rucker( born October 6, 1971) is an American actor.
Rucker began his career on the daytime soap operas" As the World Turns" and" All My Children", before roles in Tyler Perry's films
" Why Did I Get Married?
Why Did I Get Married Too?", and" Meet the Browns", and its television adaptation.
In 2016, he began starring as Jacob Greenleaf in the Oprah Winfrey Network drama series," Greenleaf".

Question: Why did Kosara's father die?
Answer: heart attack