Rachel Green is a real life character.
Guidobaldo may refer to  :. Guidobaldo Abatini -LRB- 1600 -- 1656 -RRB- , Italian painter of the Baroque period , active mainly in Rome and Usigni. Guidobaldo Abatini. Guidobaldo Abatini. Guidobaldo del Monte -LRB- 1545 -- 1607 -RRB- , Italian mathematician , philosopher and astronomer. Guidobaldo del Monte. Guidobaldo del Monte. Guidobaldo da Montefeltro -LRB- 1472 -- 1508 -RRB- , Italian condottiero and the Duke of Urbino from 1482 to 1508. Guidobaldo da Montefeltro. Guidobaldo da Montefeltro. Guidobaldo II della Rovere , Duke of Urbino -LRB- 1514 -- 1574 -RRB- , Italian condottiero , Duke of Urbino from 1538 until his death