Thanks Oscar. I note in this article that Russian cuirassiers are mentioned and thus I believe that this backs up Hourtoulle's claim that part of Kretov took part in the battle. The ground was not open for cavalry charges so they had little to no impact on the fighting.

This account has the action starting at 10am. I was very close on my times.

The later action by the V Corps did not begin until 4pm or so. Part of the Russian wing had been sent on a mission towards Dolancourt and had to be recalled. Eugene's Russian corps was part of that group but later attacked the French left. Pahlen seems to have been recalled, fought briefly and then sent to Dolancourt again.

Nothing really stood in the way of Wrede's corps. He had a clear path to the city. There had been an assault on the town on the 15th according to the text.