Was martin Luther a leader of a church?

Martin Luther was not a leader of a church in the traditional sense during his lifetime; rather, he was a theologian and reformer who challenged the practices of the Roman Catholic Church. His 95 Theses, published in 1517, sparked the Protestant Reformation, leading to the formation of various Protestant denominations. While he played a crucial role in establishing Lutheranism, he did not hold an official leadership position within a church hierarchy. Instead, he is best known for advocating for reforms in Christian theology and practice.