Simplify the following text for a Grade 10 native English-speaking person.
Original: After the death of Jacob Arminius his followers presented objections to the Belgic Confession and the teaching of John Calvin , Theodore Beza , and their followers .
Simplified: After Jacob Arminius died , people that believed the same way that he did objected to the Belgic Confession and the teachings of John Calvin and Theodore Beza .