Complex sentence: The Calvinist minority, strongly supported by its co-religionist Frederick William III, and the partially reluctant Lutheran majority formed the united Protestant Evangelical Church in Prussia, however, ensuing quarrels causing a permanent schism among the Lutherans into united and Old Lutherans by 1830.
Split into simpler sentences: The Calvinist minority, strongly supported by its co-religionist Frederick William III, and the partially reluctant Lutheran majority formed the united Protestant Evangelical Church in Prussia. However, ensuing quarrels causing a permanent schism among the Lutherans into united and Old Lutherans by 1830.