uneasy is the head that wears a the crown Идиома

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crown

to hit on the head:"Can you see a lump on my head? I've just crowned myself getting up"

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Uneasy lies the head that wears the crown

This means that people with serious responsibilities have a heavy burden.

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Uneasy lies the head that wears the crown.

With greatness and power comes a lot of responsibility.

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crown jewels|crown|jewels

n. pl. The crown, staff, and jewels used for the crowning of a king or queen; the crown and jewels representing royal power and authority. The crown jewels are handed down from one king to the next when the new king is crowned.

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crown jewels

crown jewels
1) A prized possession or asset, as in The Iliad and Odyssey are the crown jewels of ancient literature, or The software products are the company's crown jewels. This usage transfers the value of royal jewels to some other object. [Late 1800s]
2) Also, family jewels. The male genitals, especially the testicles. For example, She gave the would-be mugger a hard kick in the family jewels. A slang euphemism, the term dates from the 1970s, and the variant from the early 1900s.