Archbishop Albrecht of Mainz and Magdeburg did not reply to Luther's letter containing the Ninety-five Theses.
He had the theses checked for heresy and in December 1517 forwarded them to Rome.
He needed the revenue from the indulgences to pay off a papal dispensation for his tenure of more than one bishopric.
As Luther later noted, "the pope had a finger in the pie as well, because one half was to go to the building of St Peter's Church in Rome".

Pope Leo X was used to reformers and heretics, and he responded slowly, "with great care as is proper."
Over the next three years he deployed a series of papal theologians and envoys against Luther, which served only to harden the reformer's anti-papal theology.
First, the Dominican theologian Sylvester Mazzolini drafted a heresy case against Luther, whom Leo then summoned to Rome.
The Elector Frederick persuaded the pope to have Luther examined at Augsburg, where the Imperial Diet was held.

There, over a three-day period in October 1518, Luther defended himself under questioning by papal legate Cardinal Cajetan.
The Pope's right to issue indulgences was at the centre of the dispute between the two men.
The hearings degenerated into a shouting match.
More than writing his theses, Luther's confrontation with the church cast him as an enemy of the pope.
Cajetan's original instructions had been to arrest Luther if he failed to recant, but the legate desisted from doing so.
With help from the Carmelite monk Christoph Langenmantel, Luther slipped out of the city at night, unbeknownst to Cajetan.

In January 1519, at Altenburg in Saxony, the papal nuncio Karl von Miltitz adopted a more conciliatory approach.
Luther made certain concessions to the Saxon, who was a relative of the Elector, and promised to remain silent if his opponents did.
The theologian Johann Eck, however, was determined to expose Luther's doctrine in a public forum.
In June and July 1519, he staged a disputation with Luther's colleague Andreas Karlstadt at Leipzig and invited Luther to speak.

Luther's boldest assertion in the debate was that Matthew 16:18 does not confer on popes the exclusive right to interpret scripture, and that therefore neither popes nor church councils were infallible.
For this, Eck branded Luther a new Jan Hus, referring to the Czech reformer and heretic burned at the stake in 1415.
From that moment, he devoted himself to Luther's defeat.
Archbishop Albrecht of Mainz and Magdeburg did not reply to Luther's letter containing the Ninety-five Theses. He had the theses checked for heresy and in December 1517 forwarded them to Rome. He needed the revenue from the indulgences to pay off a papal dispensation for his tenure of more than one bishopric. As Luther later noted, "the pope had a finger in the pie as well, because one half was to go to the building of St Peter's Church in Rome".
Pope Leo X was used to reformers and heretics, and he responded slowly, "with great care as is proper." Over the next three years he deployed a series of papal theologians and envoys against Luther, which served only to harden the reformer's anti-papal theology. First, the Dominican theologian Sylvester Mazzolini drafted a heresy case against Luther, whom Leo then summoned to Rome. The Elector Frederick persuaded the pope to have Luther examined at Augsburg, where the Imperial Diet was held.
There, over a three-day period in October 1518, Luther defended himself under questioning by papal legate Cardinal Cajetan. The Pope's right to issue indulgences was at the centre of the dispute between the two men. The hearings degenerated into a shouting match. More than writing his theses, Luther's confrontation with the church cast him as an enemy of the pope. Cajetan's original instructions had been to arrest Luther if he failed to recant, but the legate desisted from doing so. With help from the Carmelite monk Christoph Langenmantel, Luther slipped out of the city at night, unbeknownst to Cajetan.
In January 1519, at Altenburg in Saxony, the papal nuncio Karl von Miltitz adopted a more conciliatory approach. Luther made certain concessions to the Saxon, who was a relative of the Elector, and promised to remain silent if his opponents did. The theologian Johann Eck, however, was determined to expose Luther's doctrine in a public forum. In June and July 1519, he staged a disputation with Luther's colleague Andreas Karlstadt at Leipzig and invited Luther to speak.
Luther's boldest assertion in the debate was that Matthew 16:18 does not confer on popes the exclusive right to interpret scripture, and that therefore neither popes nor church councils were infallible. For this, Eck branded Luther a new Jan Hus, referring to the Czech reformer and heretic burned at the stake in 1415. From that moment, he devoted himself to Luther's defeat.
Martin Luther