Senyavin maintained his neutrality , threatening to blow up the ships and set Lisbon ablaze in case of attack .
Senyavin 's seven ships of the line and one frigate were left face to face with 15 British ships of the line and 10 frigates .
Senyavin maintained Senyavin 's neutrality , threatening to blow up the ships and set Lisbon ablaze in case of attack .
Senyavin 's seven ships of the line and one frigate were left face to face with 15 British ships of the line and 10 frigates .