Jón Arason was an Icelandic Catholic bishop and poet who lived from 1484 to 1550. Born in Eyjafjörður, he was educated at the Benedictine abbey of Munkaþverá and became the bishop of Hólar in 1524. He is primarily remembered for his fierce resistance against the introduction of Lutheranism in Iceland. This struggle eventually led to his execution in Skálholt, where he was beheaded alongside two of his sons following their capture during a conflict with supporters of the Reformation.