Andrei Ivanovich Kobyla was a progenitor of the Romanov

Romanov

The House of Romanov was the second and last imperial dynasty to rule over Russia, reigning from 1613 until the February Revolution abolished the crown in 1917...

 dynasty of Russia

Russia

Russia or , officially known as both Russia and the Russian Federation , is a country in northern Eurasia. It is a federal semi-presidential republic, comprising 83 federal subjects...

n tsar

Tsar

Tsar is a title used to designate certain European Slavic monarchs or supreme rulers. As a system of government in the Tsardom of Russia and Russian Empire, it is known as Tsarist autocracy, or Tsarism...

s and many Russian noble families.

This boyar

Boyar

A boyar, or bolyar , was a member of the highest rank of the feudal Moscovian, Kievan Rus'ian, Bulgarian, Wallachian, and Moldavian aristocracies, second only to the ruling princes , from the 10th century through the 17th century....

 was documented in contemporary chronicles only once, in 1347, when he was sent by Grand Duke Simeon the Proud

Simeon of Russia

Simeon Ivanovich Gordyi was Prince of Moscow and Grand Prince of Vladimir. Simeon continued his father's policies of supporting the Golden Horde and acting as its leading enforcer in Russia. Simeon's rule was marked by regular military and political standoffs against Novgorod Republic and...

 to Tver

Tver

Tver is a city and the administrative center of Tver Oblast, Russia. Population: 403,726 ; 408,903 ;...

 with the purpose of meeting Simeon's bride, who was a daughter of Alexander I of Tver. Neither his pedigree nor exact position at court are known, hence the speculation abounds.

Later generations assigned to Kobyla the most illustrious pedigree

Pedigree chart

A pedigree chart is a diagram that shows the occurrence and appearance or phenotypes of a particular gene or organism and its ancestors from one generation to the next, most commonly humans, show dogs, and race horses....

s. At first it was claimed that he came to Moscow

Moscow

Moscow is the capital, the most populous city, and the most populous federal subject of Russia. The city is a major political, economic, cultural, scientific, religious, financial, educational, and transportation centre of Russia and the continent...

 from Prussia

Prussia

Prussia was a German kingdom and historic state originating out of the Duchy of Prussia and the Margraviate of Brandenburg. For centuries, the House of Hohenzollern ruled Prussia, successfully expanding its size by way of an unusually well-organized and effective army. Prussia shaped the history...

 in 1341, where his father had been a famous rebel. In the late 17th century, a fictional line of his descent from Julius Caesar

Julius Caesar

Gaius Julius Caesar was a Roman general and statesman and a distinguished writer of Latin prose. He played a critical role in the gradual transformation of the Roman Republic into the Roman Empire....

 was published. It's likely that Kobyla's origins were less spectacular. Not only is Kobyla Russian

Russian language

Russian is a Slavic language used primarily in Russia, Belarus, Uzbekistan, Kazakhstan, Tajikistan and Kyrgyzstan. It is an unofficial but widely spoken language in Ukraine, Moldova, Latvia, Turkmenistan and Estonia and, to a lesser extent, the other countries that were once constituent republics...

 for mare, but his relatives were also nicknamed after horse

Horse

The horse is one of two extant subspecies of Equus ferus, or the wild horse. It is a single-hooved mammal belonging to the taxonomic family Equidae. The horse has evolved over the past 45 to 55 million years from a small multi-toed creature into the large, single-toed animal of today...

s and other house animals, thus suggesting descent from one of the Ratshid royal equerries.

16th-century genealogies mention five of Andrei's sons: Simeon Zherebets, Alexander Yolka, Vasily Vantey, Gavrila Gavsha, and Fyodor Koshka.

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