Bonorum venditio proscriptionem sequitur.

The subject is venditio.

Here is the basic grammatical structure:

• venditio = nominative singular, so it can be the subject
• sequitur = 3rd person singular, so it matches venditio
• proscriptionem = accusative singular, so it is the direct object
• bonorum = genitive plural, modifying venditio

So the sentence is built like this:

• bonorum venditio = the sale of property / goods
• proscriptionem sequitur = follows proscription

Because it depends on the noun venditio.

In Latin, a noun is often followed or preceded by a genitive to show of:

• venditio bonorum = sale of property
• literally, sale of goods

So bonorum is a dependent genitive: it tells you sale of what?
Answer: of goods / property.

In this sentence, it means of goods/property, not of good men.

Why the confusion? Because bonorum could formally be:

• genitive plural masculine of bonus = of good men
• or genitive plural neuter of bonum used substantively = of goods / possessions

Here the context and the phrase bonorum venditio make it clear that the neuter sense is meant. In Roman legal language, bona often means property, possessions, estate.

Venditio is a noun meaning sale.

It is:

• feminine
• 3rd declension
• here in the nominative singular

It comes from the verb vendo, vendere = to sell.

So venditio is the thing doing the action of sequitur.

Because it is the direct object of sequitur.

The verb sequor means follow, and in Latin it commonly takes a direct object in the accusative:

• aliquem sequi = to follow someone
• proscriptionem sequi = to follow proscription

So proscriptionem is accusative singular because it is the thing being followed.

Because sequitur comes from a deponent verb.

A deponent verb:

• has passive forms
• but an active meaning

So:

• sequitur looks like a passive form
• but it means he/she/it follows, not is followed

This is completely normal for sequor, sequi.

Sequitur is:

• present tense
• indicative mood
• 3rd person singular
• from the deponent verb sequor, sequi

So grammatically it means:

• he follows
• she follows
• it follows

In this sentence, the subject is venditio, so the sense is the sale follows.

Not as a separate Latin word. The idea of following after is already built into sequitur.

English often says:

• follows X
• or comes after X

Latin can do the same with sequor + accusative.

So proscriptionem sequitur naturally means follows proscription or comes after proscription. No extra preposition is needed.

It is normal Latin word order.

A few things are worth noticing:

• bonorum venditio stays together as a noun phrase
• the verb sequitur comes at the end, which is very common in Latin
• the object proscriptionem stands before the verb

A very literal layout is:

• of-property sale proscription follows

But the grammar, not the position alone, tells you the roles of the words.

Latin word order is flexible, so the same idea could be expressed in other orders too, as long as the cases remain clear.

Yes. It is not just any ordinary sale of goods.

In Roman legal language, bonorum venditio is a recognized term for the sale of a person's property/estate, especially in contexts such as confiscation, debt, or political punishment.

So a learner should notice that:

• grammatically it is just sale of property
• but in context it can have a more specific legal sense

That is often true in Latin: a perfectly ordinary grammatical phrase can also function as a fixed technical expression.