Thisbe it is!

Ok, I hope this is an easy one...

This Renaissance architect was commissioned to build a duomo, a papal residency, and a town hall in what was meant to be a "utopian city". All three buildings were completed in three years.

His name (2 words) has 18 letters.
First name is 8 letters and last name is 10 letters.

The 5th letter of his last name is the E in THISBE.

Bernardo Rossellino

You got it!!

The answer to this clue will be a two-word name. First word has 8 letters; 4th letter is the "n" from Bernardo. Second word has 4 letters.

This is the name of a ship that used to be a cruise liner, but during World War II, the UK put it to different uses. It was carrying Italian, Austrian, and German born British residents across the ocean to internment camps in North American when it was hit by a German torpedo and sank, killing hundreds of passengers.

Ttt.

Arandora Star?

Yes! I'd never even heard of it until just a few months ago when it was the subject of a discussion on the Italian Language forum. (So many things I've never heard of....)

Your turn.

This is too easy, but I'm outta ideas again.

A line from another Shakespearean play provided the title for this novel by an Englishman. 3 words:
5,3,5. The third letter of the first word is the letter"A" from the previous answer.

Brave New World

Grandmere isn't around, but I'm pretty sure my answer in the previous post was good, so I'll make up a new clue.

Glass, steel, temperature measurement, insects, crustaceans, and coral were among the many subject areas in which this French scientist contributed studies or inventions.

The name has 5 "words" or parts, containing 4, 7, 9, 2, and 6 letters (usually in that order). The "r" from Brave is the 3rd letter of the 3rd word in the name.

I did send a reply last night but perhaps I forgot to hit the button. Sorry for the lag.

I've done that with e-mails.

Ttt. Ttt.

Glass, steel, temperature measurement, insects, crustaceans, and coral were among the many subject areas in which this French scientist contributed studies or inventions.

The name has 5 "words" or parts, containing 4, 7, 9, 2, and 6 letters (usually in that order). The "r" from Brave is the 3rd letter of the 3rd word in the name.

Ttt. Ttt. Ttt.

Jean-Jacques d'Ortous de Maira

René Antoine Ferchault de Réaumu

I will presume I am correct and hereby post a new clue.

A Bowler hat and a wonderful mustache, an eye for detail this Fictional character entertains us untill today.

5th letter of the third word is his first initial. Two words 7 and 6.