Definition of "Angelo"

I haue deliuerd to Lord Angelo / (A man of ſtricture and firme abſtinence) / My abſolute power, and place here in Vienna,

c. 1603–1604 (date written), William Shakespeare, “Measure for Measure”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act I, scene iii], page 63, column 2

Luigi — Angelo. They're lovely names; and so grand and foreign — not like Jones and Robinson and such.

1897, Mark Twain [pseudonym; Samuel Langhorne Clemens], “[Pudd’nhead Wilson] Chapter V”, in The Tragedy of Pudd’nhead Wilson: And the Comedy Those Extraordinary Twins, Hartford, Conn.: American Publishing Company, page 74