The concept of subsequent is used in our language when we want to indicate that something is found after another thing or beyond that, or it is also possible that it is used to refer to what was said or what happened after something, that is, what was after a given event.
Now, we must mention that although the concept that concerns us corresponds to being used in the aforementioned conditions, it does not turn out to have as common a use as others of its synonyms, posterior, next, consecutive, subsequent, successive, to come, far. That is, to refer exactly to what is stated above, it is more common for us to use some of these synonyms for ulterior, especially in the colloquial use of language.
Meanwhile, in the formal communications that are carried out in areas such as the legal system, it turns out to be frequent to find this concept. The concept is even used in association with other terms, forming specific concepts within the legal field and that is why for those who master the subject or develop in this space, the subsequent word will not be foreign at all.
Once the clarification has been made, we must also indicate that the subsequent word is especially used then to describe or mention that thing that is located next, that is in the next place at the behest of a series, of something that we are saying, that happens later or that takes place after something else happens, and to a lesser extent it can be used when you want to express deep issues.
The opposing concept is that of previous, because it just indicates that it precedes, precedes something or someone, either in a time or in a place.
Also, this concept has been used in the plane of history to designate to a division of Hispania. Hispania was the name by which first the Phoenicians and then the Roman civilization called the Iberian Peninsula.
When the Romans in their desire to conquer took control of the aforementioned territory, they divided it into two provinces and one of them was called Hispania Ulterior, so named precisely because of its position. This happened in 197 BC. In the year 27 BC disappeared as such.