海上世家 英文翻译

sea aristocratic family

old and well-known family risen from the sea merchandise
thalassocrat

海上世家

the family notable for generations of sea life

应该是Sea noble family

世家可以是 an old and well-known family 但普普通通，也许是 aristocratic family 世代为官。“海上” 可以是 at sea。所以，有以下两种译法：

an old and well-known family at sea
an aristocratic family at sea