 Complete the following phrase:  In 1677, while still a young man, Gavrila Golovkin was attached to the court of the tsarevich Peter, with whose mother Nataliya he was connected, and vigilantly guarded him during the disquieting period of the regency of Sophia. He accompanied the young tsar abroad on his first foreign tour, and worked by his side in the dockyards of Zaandam. In 1706, he succeeded Golovin in the direction of foreign policy, and was created the first Russian grand-chancellor on the 