Andrey Bolshoy
Andrey Vasilyevich Bolshoy, nicknamed Goryai( 14 August 1446 in Uglich – 6 November 1493 in Moscow), was the third son of Vasili II of Russia who transformed his capital in Uglich into a major centre of political power and ensured the town's prosperity for two centuries to come.
He was called Andrey Bolshoy( Big Andrew) to distinguish him from his younger brother( Little Andrew).
After the death of his father in 1462, Andrey Bolshoy inherited the cities of Uglich, Zvenigorod, and Bezhetsk.
His relations with his older brother, Ivan III of Moscow, were cordial at first.
It was ten years later that the death of their brother, the childless Yury of Dmitrov, led to bad blood between the two.
Ivan III appropriated Yury's appanage for himself, rather than sharing it with his brothers.
At last he granted some of Yury's lands to his other brothers, except Andrei Bolshoy, who had been coveting them more than others.
Another conflict between the two brothers was triggered by the right of boyars to leave their own prince for the courts of other princes.
Ivan III would only allow such practice if a boyar were to move to Moscow.
In 1479, one displeased boyar, Prince Lyko- Obolensky, left the Moscow Kremlin and settled at the court of his brother Boris, ruler of Volokolamsk.
When the latter refused to extradite the boyar, Ivan III ordered to capture Lyko- Obolensky and deliver him to Moscow in chains.
Andrei Bolshoy took the side of the offended prince of Volokolamsk.
The two brothers joined their armies and marched towards Novgorod and then to the Lithuanian border.
There, they began to negotiate with the Polish king Kazimierz IV, who decided not to interfere in the conflict.
Boris and Andrey then sought support in Pskov, but to no avail.
In order to settle the conflict, Ivan III offered Andrei Bolshoy the cities of Kaluga and Aleksin, but he refused.
The invasion of Khan Akhmat in 1480 reconciled the grand prince with his brothers.
Ivan III became more tractable and promised to fulfill all their demands.
Andrei and Boris moved their armies to the Ugra River and joined Ivan III in his stand- off with the Mongols.
Their reconciliation was mediated by their mother, metropolitan and a number of bishops.
As a token of their reconciliation, the grand prince granted Andrei the city of Mozhaisk, the most coveted part of Yury ’s appanage.
After the death of their mother Maria of Borovsk in 1484, Andrei ’s situation became perilous because his defiant stance and groundless claims filled Ivan III with misgivings.
He was afraid that, in line with the ancient system of Rurikid succession, Andrey would attempt to usurp the throne of Muscovy after his own death.
In 1488, Andrey was informed about Ivan's plans to dethrone and imprison him.
Upon his epistolary complaint to the grand prince, the latter protested his innocence.
In 1491, Ivan III ordered Andrei and Boris to send their armies to help out his ally Meñli I Giray.
For reasons unknown, Andrei disobeyed the grand prince.
When he came to Moscow in 1492, he was arrested and put in prison, where he died in 1493.
Thereupon Andrey's sons — Ivan and Dmitry — were imprisoned in Vologda, while their appanage — Uglich — was annexed into Muscovy.
Vasily Ivanovich of Ryazan
Vasily Ivanovich( 1448 – January 7, 1483) was the Grand Prince of Ryazan( 1456 – 1483), son of Grand Prince Ivan III of Ryazan.
Upon their father's death in 1456, eight- year- old Vasily Ivanovich and his sister Feodosiya were transferred under the care of the Grand Prince Vasily II of Moscow, who would place his namestniks in Ryazan to rule over the principality in the absence of the rightful heirs.
Vasily II conducted all of Ryazan's internal and external affairs on behalf of the underage Vasily Ivanovich.
In 1463, Ivan III of Russia and his mother Maria Yaroslavna let Vasily Ivanovich return to Ryazan.
In the winter of that same year, the young prince came back to Moscow and married the youngest sister of Ivan III – Anna Vasilyevna – on January 28, 1464.
As far as Vasily Ivanovich's lasting reign is concerned, Ryazan's relations with its neighbors were quite peaceful, especially with Moscow( thanks to his wife Anna Vasilyevna, who often stayed the city).
During one of such visits, Anna of Ryazan gave birth to Ivan IV of Ryazan on April 14, 1467.
It is plausible that the inclusion of the Pronsk udel into the Principality of Ryazan was possible due to Anna's mediation between her husband and Ivan III.
Shortly before his death, Vasily Ivanovich signed away two- thirds of his principality( Pereslavl, Rostislavl, Pronsk, and all the volosts and residences) in favor of his oldest son Ivan Vasilyevich.
His second son Fyodor received a third of the principality and a third of all Pereslavl's income.
Vasily Ivanovich bequeathed to his wife
Anna a fourth of all the lands that his sons received from him.
It is believed that Vasily Ivanovich also had a third son by the name of Pyotr( born in 1468 and died during Vasily's lifetime) and a daughter named Anna, who would marry Prince Fyodor Ivanovich Belsky in January 1498.
Yuri of Ryazan
Yuri Igorevich( died December 21, 1237) also known as Yuriy Ingvarevich, was the Grand Prince of Ryazan( 1235 – 1237) who presided over the Principality of Ryazan at the time of the Mongol invasion of Rus'.
According to The Tale of the Destruction of Ryazan, after receiving envoys of Batu Khan in December 1237, he sent his son Fedor to negotiate with Batu, but the envoys were massacred for their defiance, the first Russian martyrs of the Mongol invasion of Rus'.
After sacrificing his son in defense of his homeland, Prince Yuri led his army in the Battle of Voronezh River and finally perished during destruction of Ryazan.
He was succeeded by his nephew Ingvar Ingvarevich of Ryazan( 1237 – 1252).
Ivan V of Ryazan
Grand Prince Ivan V of Ryazan( Ivan Ivanovich)( 1496 – 1533 or 1534) was the last nominally independent ruler of Ryazan Principality.
Ivan V of Ryazan was the only son of Prince Ivan Vasilievich and his wife, Agrippina( Agrafena) Vasilyevna, Princess Babich- Drutskaya.
Ivan III of Ryazan
Ivan Fyodorovich  was the Grand Prince of Ryazan (1427–1456) and son of Grand Prince Fyodor II of Ryazan.
His mother was the daughter of Dmitry Donskoy.
Ivan kept good relationships with his large and powerful neighbours.
In 1429, he attended the Congress of Lutsk and made Ryazan a vassal of the Grand Duchy of Lithuania under Vytautas.
He signed a peace treaty with Vasily II of Moscow in 1447 and married his son and heir to Vasily's daughter.
Near to his death he sent his two children to the court in Moscow for safety.
It was during Ivan's reign that coins from Ryazan started to include the name of the grand duke.
Eupraxia of Ryazan
Eupraxia of Ryazan( d. 1237), was a Princess consort of Ryazan by marriage to Prince Fjodor Jurjevitj of Ryazan.
She was venerated as a local saint in the Russian Orthodox church.
She committed suicide rather than to surrender to captivity of Batu Khan during the Mongol invasion of Russia.
She has been portrayed in films.
Dmitry Ivanovich (grandson of Ivan III)
Dmitry Ivanovich Vnuk( the Grandson)( 1483– 1509) was Grand Prince of Moscow between 1498 and 1502.
Dmitry's parents were Ivan the Young, crown heir of Moscow, and Elena of Moldavia, daughter of Stephen III of Moldavia.
After his father's death in 1490 he became heir presumptive of Muscovy.
In February 1498, Ivan III had his grandson, Dmitry, crowned grand prince of Vladimir, Moscow and all Russia.
Even after receiving the title and official position Dmitry Ivanovich did not play any political role in the Grand Duchy.
On the other hand, his uncle Vasili received, from Ivan III of Russia, control of Novgorod and Pskov in 1499.
During the next 3 years Moscowy court became a place of conspiracy between supporters of Dmitry represented by his mother Elena and supporters of Ivan's second born son Vasili supported by his mother and Ivan III's second wife Sophia Paleologue.
On 11 April 1502 Ivan III sent Dmitry and his mother Elena to prison.
Three days later Ivan made Vasili, autocrat of all Russia.
In 1509, Dmitri died in prison.
Ivan IV of Ryazan
Grand Duke Ivan IV of Ryazan( Ivan Vasilyevich of Ryazan;; April 14, 1467, Moscow – May 29, 1500) was the ruler of the Grand Duchy of Ryazan( 1483 – 1500).
He was the elder son of Grand Duke Vasily Ivanovich of Ryazan and Grand Duchess of Ryazan Anna Vasilyevna, younger sister of Ivan III of Moscow.
He had a younger brother, Prince Fyodor Vasilyevich, with whom he shared domains in the Duchy of Ryazan.
Fyodor II of Ryazan
Fyodor Olegovich  was the Grand Prince of Ryazan (1427–1456) and son of Grand Prince Oleg II of Ryazan.
Daniil Shchenya
Prince Daniil Vasiliyevich Shchenya (Unknown – after 1515) was a Russian military leader during the reigns of Ivan III and Vasili III.

Question: Who is the paternal grandfather of Ivan Iii Of Ryazan?
Answer: Oleg II of Ryazan