John Rider (bishop)

John Ryder (1562–1632) was a lexicographer who published an English-Latin Dictionary that was widely used in the 17th century. A favourite of Elizabeth I, he was Dean of St. Patrick's Cathedral, Dublin, and the Anglican Bishop of Killaloe.

John Ryder was born in 1562, the son of Edward de Rythre of Carrington, Cheshire. His great-grandfather, Thomas de Rythre (d.1552) of Scarcroft, was Cofferer to the Household of King Edward VI and a first cousin of Henry Percy, 6th Earl of Northumberland, through their grandfather Sir William de Rythre (1408–1476) of Ryther Castle, Scarcroft and Harewood Castle. Bishop Ryder was the first of his family to spell his name Ryder, rather than de Rythre/Ryther. His first cousin, Mary Ryther (daughter of the Lord Mayor of London) and her husband Sir Thomas Lake were the great-grandparents of the Duchess of Chandos.

Ryder was educated at Jesus College, Oxford (B.A, M.A.). Afterwards he was Rector of Bermondsey (1581–1583) and of South Ockendon (1583–1590). At Oxford, 1589, he published his English-Latin Dictionary. He added over four thousand words which hitherto had no record of translation. In this huge undertaking, he was greatly aided by his friend Henry Radclyffe, 4th Earl of Sussex.