Roger Maynwaring was born in Stretton in Shropshire and died in Carmarthen. He was educated at the King's School, Worcester, and at All Souls' College, Oxford. He graduated BA in 1608, MA in 1611, and BD and DD in 1625. In 1616 he was appointed rector of St Giles-in-the-Fields, London. He became a chaplain to Charles I in 1626, and in the following year he delivered two sermons before the king, defending the Forced Loan which Charles had recently been collecting. In 1626 Parliament had attempted to impeach the Duke of Buckingham, Charles's favourite. The king blocked the impeachment by dissolving the Parliament, which had not yet voted taxes. To obtain badly needed funds, Charles introduced the Forced Loan, coercing his subjects into lending him money, with dubious prospects of repayment. He encouraged churchmen to preach in favour of the Loan, and two did so with particular enthusiasm – Maynwaring and Robert Sibthorp. Maynwaring's sermons were soon printed by royal command.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.