In 1920, he was promoted to be the fourth principal architect.

Norman Foster's firm are the principal architects of the scheme.

Frank Gehry is the principal architect in charge of the project.

He has also said that the prime minister should be the principal architect of foreign policy.

Guastavino was not the principal architect for most of the projects.

John Portman was the principal architect for the original design.

Her father is the principal architect in a Manhattan firm that bears his name.

They became the principal architects for Iowa's three state university campuses and also designed other public buildings.

He was the principal architect of the paper's style and the only journalist involved with the original Founders.

Definitely so when one of the two was the principal architect for getting us into the mess in the first place.