Koromilas was then sent to the United States as ambassador.

Koromilas was then sent as ambassador to Rome, where he remained until his resignation and retirement in 1920.

After his release from the government, he was sent to Switzerland as Bulgarian ambassador (1963-1966).

He was sent to the United States as ambassador in 1969.

The following year he was sent as British ambassador to France, remaining there until the outreak of war in 1701.

He was then sent to the Hague as ambassador a second time.

In 1728 he was sent to the Hague as ambassador.

He was then sent as French ambassador to the Holy See.

Yost was then sent as ambassador to Morocco in 1958.

He was sent to London as ambassador in the next year, but died two months after his arrival.