Despite frictions with Dutch deputies and generals (who not always showed the required awe of Marlborough's abilities) Anglo-Dutch cooperation in the military and diplomatic field was usually excellent, thanks to the rapport between Heinsius and Marlborough. The former supported Marlborough during the clash with General Slangenburg after the Battle of Ekeren and facilitated Slangenburgh's removal, despite his heroic status in Dutch public opinion. Cooperation with other Dutch generals like Henry de Nassau, Lord Overkirk at the battles of Elixheim, Ramillies, and Oudenaarde, and later with John William Friso at Malplaquet was much improved, as was the relationship with the Dutch deputies-in-the-field, especially Sicco van Goslinga.