Definition of "Roger"

By her I claim the kingdom: she was heir / To Roger, Earl of March, who was the son / Of Edmund Mortimer.

1591 (date written), William Shakespeare, “The Second Part of Henry the Sixt, […]”, in Mr. William Shakespeares Comedies, Histories, & Tragedies. […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene ii]

Pringle didn't say anything about Roger always being called Hodge. He sensed that Mr. Liddon wouldn't call him Hodge any more than he would call him Pringle. He was right. "Parents well, are they, Peregrine?" - - -Hodge capered about, his thumbs in his ears and his hand flapping. "Tweet, tweet, mad bird. His master chains him up like a dog. Tweet, tweet, birdie!" "I'd rather be a hunting falcon than Roger the lodger the sod," said Pringle.

1985, Ruth Rendell, The New Girlfriend: The Fen Hall, pages 124, 127

The escaped convicts who had captured the Arrow even ran up the “Roger,” the black flag with the white skull […]

1906, Bret Harte, Overland Monthly and the Out West Magazine, page 410