The city was to be named after Beverly Farms.
Il mio tentativo: La città doveva essere chiamata col nome di Beverly Farms.
Certo che was to be named è abbastanza contorta come forma...
We are talking about the history of Beverly Hills.
This is the entire phrase:
"A hundred years ago, southern California was all farmland and oil fields. Then local business people decided to plan a new city with wide streets and large houses. The city was to be named after Beverly Farms, Massachusetts, and so Beverly Hills was born."
Is it more clear now?