Because of the stirrup, Zhao Yao became widely known in a fierce manner.
The tenth prince, who had barely any presence, truly appeared in the eyes of the entire imperial court for the first time. However, excessive attention was lacking.
As Liang Zhaoyi predicted, the ministers of the court would not deem Zhao Yao a prince worth supporting just because he invented the stirrup.
There are a few requirements for ministers to preemptively support a prince; the first requirement: The prince himself must be deeply favored by the emperor, or heavily relied upon. The second requirement: The prince himself must possess ability. The third requirement: The prince's maternal family must have certain power. The fourth requirement: The prince's mother must also be favored by the emperor to some extent.
Zhao Yao met none of these four requirements.
Of course, there are special exceptions.
Some ministers would support princes without power, influence, or support, such as the eighth prince.