Thomas Aquinas

Saint Thomas Aquinas, O.P. (also Thomas of Aquin or Aquino; c. 1225–1274) was an Italian Catholic priest in the Dominican Order, a philosopher and theologian in the scholastic tradition, known as Doctor Angelicus, Doctor Universalis and Doctor Communis. He was the foremost classical proponent of natural theology, and the father of the Thomistic school of philosophy and theology.

Thomas Aquinas in In High Places
One of the core values espoused by Thomas Aquinas was the belief that scientific inquiry and religious inquiry were compatible. In an alternate] where the Black Plague killed 4/5 of Europe, this idea was lost, insuring that Scientific Revolution never took place.