These flags are my reconstruction of the flags of Dutch IR 9 Pfalz-Birkenfeld/Hüffel after the very fragmentary remains depicted in the Triomphes Louis XIV of a flag captured by the French at Neerwinden in 1693. The fragments appear to be those of the colonel's flag and the corner details strongly suggest the main motif was a saltire, unusual for a non-Scottish unit in Dutch service. Hall in his book on the Dutch suggests the possibility of the Dutch lion at the centre of the flag, as I have shown it here. The upper flag with a red field is a very speculative regimental flag, the flag below the colonel's flag. I was also asked to depict the flags with a motto so also offer these for those who might like them.
Pfalz-Birkenfeld IR No.9 Province of Holland, 1 battalion
Oberst 1673-1704 Johan Karl Pfalzgraf von Birkenfeld; 1704 on, Friedrich Johann Baron von Hüffel
Service:
1702: Siege of the citadel of Lüttich
1703: Siege of Bonn
1706: Battle of Ramillies; siege of Ath
1709: Battle of Malplaquet
1710: Siege of Aire
And the uniform in the late 17th to early 18th century was something like this: