in the shadow of (someone or something)

1. Given less attention or considered as less notable, important, or successful compared to someone else. He's been in the shadow of his father for his entire political career. Unless I start winning some academic awards, I'm gonna be in my siblings' shadow all through high school. As usual, I spent my graduation day in the shadow of my sister's drama.

2. Living with the constant fear, anxiety, or painful memory of something. Residents have had to live in the shadow of the war for nearly a decade now. It's hard to live in the shadow of grief, but its grip will ease up in time, I promise. Of course the poorest people still live in the shadow of the nuclear reactor.

in/under the ˈshadow of

1 very close to: The new market is in the shadow of the City Hall.
2 when you say that somebody is in/under the shadow of another person, you mean that they do not receive as much attention as that person: Most of her childhood had been spent in the shadow of her elder sister.