Early in its history, Batanes already had a civilization flourishing on its islands and was ruled by powerful chiefs who exacted revenues, administered justice, as well as exercised military might especially during times of invasion from other tribes.
The ROOT-WORD is the Prefix PARA which means BESIDE, ALONGSIDE & POSTION. There are other words with this root which it would be well for you to know, words such as PARAnoia, delusions of greatness; PARAphernalia, goods; PARAmount, etc.
Writers in English often get words spelled incorrectly because the vowels in English often do not get an accent so that it is hard to tell the difference in everyday speech. This is notably the case in words that have the roots or prefixes of peri-and -para-. Peri-is a Greek prefix. That means that it will normally be associated with roots from the Greek language. (There may be some exceptions, but that will be the rule).