Henri d'Escoubleau de Sourdis, 20 February 1593 to 18 June 1645, was a French naval commander and Archbishop of Bordeaux.

Appointed Bishop of Maillezais in 1619, he fought in the Thirty Years' War and in 1628 served as commander of the artillery at the Siege of La Rochelle.

It seems that Richelieu hoped that des Gouttes would give the necessary advice to de Sourdis who would have the personality to force it on to d'Harcourt.

Squabbles between the officers rendered the fleet inoperable throughout 1636 and it wasn't until February 1637 when de Sourdis attacked Oristano in Sardinia.

He left Claude de Razilly to maintain the blockade, sent Montigny to scout westwards to warn of any approaching Spanish fleet, and kept his own squadron in reserve.

[2] Montigny's 6 ships were sent in and engaged the Spanish line very successfully, taking full advantage of the wind and heavy swell.

The Royal Navy of France had won a complete victory, destroying the Coruña squadron for the loss of just 40 French casualties.

The land attack on Fuenterrabia Siege of Fuenterrabía (1638) was not pushed vigorously, perhaps because the French expected the town to surrender once attempts to relieve it by sea had failed.

In 1640, de Sourdis was moved to command in the Mediterranean, but found few opportunities for battle because of the uncertain neutrality of the Republic of Genoa.

With many of his ships badly damaged, de Sourdis was obliged to return to Toulon to refit (Battle of Tarragona (August 1641)).