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Dei Seichen

1136 – 1191

12-th century Khongirad ruler, a father of Börte

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About Dei Seichen

Lived 1136 – 1191 (aged 54–55).

Dei Sechen (, ) was the chief of Mongol Khongirat tribe's Bosqur clan in 12th–13th centuries. His daughter Börte was the first and principal wife of Genghis Khan.

According to The Secret History of the Mongols Temujin was betrothed to Börte when he was 9 years old by Yesugei and Dei, when Yesugei was looking for a bride for his son. Yesugei put his son in care of Dei Sechen and returned to his tribe, only to be poisoned on the road during a lunch by Tatars. However, according to Rashid al-Din, Dei Sechen wasn't happy with betrothal, it was his son Anchen (按陳) who facilitated the process. Japanese researcher Mako Fujii argued that Dei Sechen was involved in Yesugei's death.

Later, when Temujin grew up, he still married his betrothed Börte. Part of her dowry was a luxurious black marten, which Temujin later presented to Toghrul, thus enlisting the support of the Keraites.

Descendants He had a spouse named Chotan who bore his sons Anchen and Qogu and his daughter Börte. His descendants married into ruling Borjigin family, producing imperial son-in-laws and empresses.

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Important facts

Born
1136
Birth century
Died
1191
Also known as
Teyin, Xuechan, Dei sečen, Tesecen, Texuechan

People in Dei Seichen's life

Named in this biography and alive at the same time

Contemporaries

People whose lives overlapped Dei Seichen's

Frequently asked questions

Who was Dei Seichen?

12-th century Khongirad ruler, a father of Börte

When was Dei Seichen born?

Dei Seichen was born in 1136.

When did Dei Seichen die?

Dei Seichen died in 1191.

Sources & further reading

· Wikipedia: Dei Seichen

· Wikidata: Q7067660

· DBpedia: Dei Sechen

Cite this page

APA: Biography.guide. (2026). Dei Seichen. https://biography.guide/dei-seichen/

MLA: "Dei Seichen." Biography.guide, https://biography.guide/dei-seichen/.

Chicago: "Dei Seichen." Biography.guide. https://biography.guide/dei-seichen/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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