The Bible only mentions the deaths of two apostles, James who was put to death by Herod Agrippa I in 44 AD and Judas Iscariot who committed suicide shortly after the death of Christ. The details of the deaths of three of the apostles (John the Beloved, Bartholomew and Simon the Canaanite) are not known at all, either by tradition or early historians. The deaths of the other seven apostles are known by tradition or the writings of early Christian historians. According to traditions and the Bible, eight of the Apostles died as Martyrs. At least two of the Apostles, Peter and Andrew were crucified.
But, looking at
CADRE - Dating the New Testament, one sees among other things the following quotes:
Judas’ replacement by Matthias was noteworthy enough to be mentioned in Scripture, as was the death of the apostle James (though
his replacement is
not named… you’re only assuming it was Paul). If “only 12 apostles at any one time, chosen by lot from among the brothers (there was a group of about one hundred and twenty persons in the one place)” is the “pattern that was to continue”, then that pattern should have been more clearly established in Scripture. Timothy is named as an apostle, yet 2 Tim. 1:6, 14 tells us “Hence I remind you to rekindle the gift of God that is within you
through the laying on of my hands… guard the truth that has been entrusted to you by the Holy Spirit who dwells within us.”