Joseph Bonaparte.
Are you known mainly as a scientist or philosopher?
I was going for Johann Sebastian Bach(Toccata and fugue and all that)
DQ: Are you German?
IQ: Are you a famous ornithologist not altogether famous for ornithology?
Neither a scientist, philosopher nor German
And what famous person likes birds? have another dq.
The one, the only James Bond
DQ: Are you a writer?
IQ: Were you at one time alive and well?
Not a writer
Jim Backus (aka Mr. Magoo) was presumably once alive and well 
The painter was Jheronimus Bosch (sometimes spelled Hieronymus), the Simpson character was Jasper Beardly
Are you a man of the cloth ?
Are you Italian ?
Are you a Man of Honor who led a side in the Banana War?
English actress, Jacqueline Bisset. In the American sitcom, Cheers, the bar owner, Sam Malone, once bet his entire bar that he would one day marry her.
DQ: Did you ever rule a country?
IQ: Despite the seriousness of the crime that made you famous, did David Letterman really like your name?
Kobal2: Well, I know who Hieronymus Bosch is 
Not a man of the cloth, nor am I Italian
AppallingGael: Have a DQ
seodoa: I did rule a country! And have another DQ.
Joey Buttafuoco, whose name was often the butt of jokes for talk show host David Letterman.
DQ: Were you the ruler of a nation which exists today?
IQ: Were you once the King of Spain and the Indies, among other titles?
(admitedly, Hieronymus was a very low blow - I thought of him because I know him as “Jérôme Bosch”, the frenchified version of his name :o)
Are you a British OBE who had a long relationship with a French singer/poet famous among other things for his chain smoking, ugly mug and appaling hygiene (yes, even by French standards ;)) ?
seodoa: I’m not Jospeph I (who’s been asked about before)
My nation exists today!
Kobal2: I’ll accept it as a peace offering for the sportsmen
And have a dq.
DQ : Are you of noble lineage or royal blood ?
I was a royal, yes.
Oops, had forgotten about that. :smack:
Were you the first of your ruling house in a most westerly nation?
I AM Jean Baptiste Bernadotte, first of the Swedish Bernadottes.
flings confetti and fires off fireworks!
Actually, I was thinking of John IV Braganza, first of the Braganzas of Portugal, the westernmost nation in continental Europe. But I’ll take a win where I can get one. 
Sweden is still a western (more than westerly) nation; so please go ahead with the next round.
(it’s a lot more fun to ask than to be asked )
Okay. I’ve got one.
P
Did you use to be a Poet Laureate?
Are you a British comedy actor?
Are you a fictional Radio and TV presenter?