Yes they had many relation by the orders of the ching chag agreement
Emperor Yang of Sui was born in 569.
Emperor Gong of Sui was born in 605.
Emperor Wen of Sui was born on 541-07-21.
Emperor Gong of Sui died on 619-09-14.
first Sui emperor (541-604) Yang Jian (541-604)
Wendi was born in 541 in China and died in 604. Wendi was the Sui dynasty emperor and reigned from 581 to 604. Wendi reunited and organized China after 300 years, and founded the Sui dynasty (581-618).
1,500 miles were built under the Sui dynasty.
Powerful but short-lived, the Sui Dynasty ended nearly four centuries of rivalry. Emperor Wen of Sui founded this tyrannical dynasty in 581(CE) and made the city of Chang'an (later re-named Daxing) his capital. His son Yang became the second and only other Emperor, possibly by murder, of this ruthless dynasty. While rebuilding the Great Wall of China was an astounding accomplishment, so was the extension of the Grand Canal from the Hangzhou region across the Yangzi to Yangzhou, and then onward to the Luoyang region. So there were TWO Emperors of the Sui Dynasty. Yang was assassinated in 618 by his own advisors, after the unsuccessful invasion of North Korea.
Emperor yang Jian was the second son of Emperor Wen of Sui and the second emperor of China
Emperor Taizong was born at the Qingshan palace in Wugong, Sui China
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1,500 miles were built under the Sui dynasty.