Sejo of Joseon vs Toghrul Beg

Grand Prince Suyang (later Sejo) staged a coup, forcing his nephew King Danjong to abdicate. Sejo assumed the throne, initiating a reign marked by consolidation of power and elimination of rivals.

Sejo discovered a plot by six loyalist ministers to restore Danjong. He had them executed, along with their families, in a brutal purge that eliminated opposition to his rule.

Sejo ordered the murder of his deposed nephew Danjong, who was then 16. This act removed the last legitimate claimant to the throne and secured Sejo's dynasty.

Sejo led military campaigns against Jurchen tribes in the northern border regions. These campaigns secured Joseon's northern frontier and expanded territory.

Sejo initiated the compilation of the Gyeongguk Daejeon, a comprehensive legal code that would later be completed under Seongjong. This code systematized Joseon's government and laws.

Toghrul Beg led the Seljuk Turks to victory over the Ghaznavid Empire at Dandanaqan in Khorasan. This defeat forced the Ghaznavids to retreat eastward, granting the Seljuks control of Khorasan and establishing their power base in Persia.

Toghrul Beg launched a major raid into Byzantine Anatolia, reaching as far as the city of Manzikert. Although he did not capture the city, the campaign demonstrated Seljuk military strength and foreshadowed future conflicts that would lead to the Battle of Manzikert in 1071.

Toghrul Beg entered Baghdad at the invitation of the Abbasid Caliph al-Qa'im, who sought protection from the Buyid dynasty. Toghrul deposed the Buyid ruler, married the caliph's daughter, and was granted the title 'Sultan', becoming the de facto ruler of the Islamic world.

Toghrul's half-brother Ibrahim Inal rebelled against his authority, allying with the Fatimid Caliphate. Toghrul defeated and executed Ibrahim Inal, consolidating his power and eliminating a major internal threat to Seljuk unity.