Guy XX de Laval, François de Coligny (May 6, 1585 – December 3, 1605) was the Count of Laval (Mayenne) and Baron of Quintin. He was son of Guy XIX de Laval and Anne d'Algère.

In 1588, Anne d'Algère took him to Sedan

Sedan, France

Sedan is a commune in France, a sub-prefecture of the Ardennes department in northern France.-Geography:The historic centre is built on a peninsula formed by an arc of the Meuse River. It is around from the Belgian border.-History:...

 so that he could be raised as a Protestant. In April of 1605, however, Guy XX de Laval converted to Catholicism

Catholicism

Catholicism is a broad term for the body of the Catholic faith, its theologies and doctrines, its liturgical, ethical, spiritual, and behavioral characteristics, as well as a religious people as a whole....

.

Near the end of 1605 he led an expedition in Hungary

Hungary

Hungary , officially the Republic of Hungary , is a landlocked country in Central Europe. It is situated in the Carpathian Basin and is bordered by Slovakia to the north, Ukraine and Romania to the east, Serbia and Croatia to the south, Slovenia to the southwest and Austria to the west. The...

 against the Turks

Ottoman Empire

The Ottoman EmpireIt was usually referred to as the "Ottoman Empire", the "Turkish Empire", the "Ottoman Caliphate" or more commonly "Turkey" by its contemporaries...

 and died in combat on December 3 of that year.

He was the last Count of Laval to take the name of Guy.