The essence of the new
operational plan elaborated on 30–31 April by General Klapka, adjusted by Lieutenant Colonel József Bayer, was to attract the attention of Windisch-Grätz on the VII. corps at Hatvan, while the other three corps try to get around the Austrian armies with a march, through the
Jászság region, towards the southwest, and cut them from Budapest. On 1 April the III. and VII. corps of the Hungarian army were stationing at Gyöngyös, while the I. and the II. corps took positions at Karácsond, Sár and
Detk. also to Jászárokszállás. On the next day the whole VII. corps and the III. corps Wysocki division was engaged in the Battle of Hatvan against Schlik's III. corps. The two armies were composed of the following units.
2. (Kmety) division: • 4. (Gergely) brigade: 10. infantry battalion, 23. infantry battalion, 1
sapper company, 3. six pounder infantry battery; • 5. (Újváry) brigade: 45. infantry battalion, 2 companies of jägers, 4 companies of the 9. (Wilhelm) hussar regiment, 4. six pounder cavalry battery; • 6. (Üchritz) brigade: 33. infantry battalion, 2. infantry battalion from
Besztercebánya, 2 companies of the 12. (Nádor) hussar regiment, 5. six pounder cavalry battery;
3. (Poeltenberg) division: • 7. (Kossuth) brigade: 1. infantry battalion, 1. infantry battalion from Besztercebánya, 2 companies of the 4. (Alexander) hussar regiment, 5. six pounder infantry battery; • 8. (Zámbelly) brigade: 14. infantry battalion, 1. infantry battalion from Pest, 4 companies of the 4. (Alexander) hussar regiment, 1. six pounder cavalry battery;
4. (Simon) division: • 9. (Weissl) brigade: 4 companies of
grenadiers, 2. battalion of the 48. (Ernest) infantry regiment, 1 company of German Legion, 1
howitzer battery; • 10. (Liptay) brigade: 4 companies of the
Tyrolian jägers, 1 sapper company, 1 howitzer cavalry battery, 2 Congreve rockets launching racks; -
III. corps (the units which got involved in the battle):
Wysocki division: • 2. (Leiningen) brigade: 3. battalion of the 19. (Schwarzenberg) infantry regiment, 3. infantry battalion, 9. infantry battalion, 6 companies of the 3. (Ferdinand) hussar regiment, 4 companies of the 2. (Hannover) hussar regiment, 2. twelve-pounder infantry battery, 3. six-pounder cavalry battery; • 3. (Czillich) brigade: 42. infantry battalion, Polish Legion, 3. battalion of the 60. (Wasa) infantry regiment, 4 companies of the 2. (Hannover) hussar regiment, 3. six pounder infantry battery; : -
III. corps:
Lobkowitz division: • Parrot brigade: 3. battalion of the 3. (Archduke Karl) infantry regiment, 1. battalion of the 12. (Wilhelm) infantry regiment, 1. battalion of the 24. (Parma)
Landwehr regiment, 3. battalion of the 30. (Nugent) infantry regiment, 2 companies of the 2. jäger battalion, 1 company of the 1. (Imperial)
chevau-léger regiment, 36. six pounder infantry battery; • Künigl brigade: 3. battalion of the 12. (Wilhelm) infantry regiment, 3. battalion of the 40. (Koudelka) infantry regiment, 2. battalion of the 28. (Latour) infantry regiment, 2 companies of the 1. (Imperial)
chevau-léger regiment, 34. six pounder infantry battery;
Liechtenstein division: • Fiedler brigade: 3. battalion of the 58. (Archduke Stefan) infantry regiment, 2. battalion of the 9. (Hartmann) infantry regiment, 3. battalion of the 10. (Mazzuchelli) infantry regiment, 4 companies of the miscellaneous Ecker battalion; • Montenuovo cavalry brigade: 2 companies of the 1. (Imperial) chevau-léger regiment, 2 companies of the 7. (Kress) chevau-léger regiment, 6 companies of the 10. (King of
Prussia)
cuirassier regiment, 2 companies of the 2. (Sunstenau) cuirassier regiment, 2. cavalry battery; • The artillery reserve of the corps: Schlik six-pounder infantry battery, 11. Congreve rockets battery, 12. Congreve rockets half battery. As a result of this, Major Lajos Zámbelly did not want to risk a confrontation with the Austrians, so he retreated from Hatvan towards Hort after destroying the bridge over the Zagyva. Hearing about the Austrian advance, Poeltenberg ordered his division to advance to Hatvan to occupy it before the Austrians, but the sappers of the Parrot brigade restored the Zagyva bridge rapidly and occupied Hatvan before Poeltenberg's troops arrived there. Seeing this, Poeltenberg gave the order to retreat to Hort, while the cavalry and a cavalry brigade of his division prevented the Austrian cavalry to pursue the retreating Hungarians. The Austrian general planned for the next day to unite his troops in Hatvan, and send his vanguard to occupy Hort. From the skirmishes on 1 April, he could not take important conclusions about the size of the Hungarian army, so he decided to continue his military reconnaissance. The fact that his patrols sent to
Jászberény did not find any enemy troops. To secure his position and to learn more about the enemy positions, Parrot sent his cavalry patrols forward on the main road, and installed his infantry outposts in a long chain on the vine-growing hill, doubling their number for the night. Thus these two units will not participate in the battle from the next day. At the same time the fact that a strong detachment of the III. (Damjanich) corps was sent to Csány, supporting in this way the VII. corps, was a good sign of anticipation. After the Austrian attack against the Poeltenberg division from 1 April the dispositions regarding the duties of the VII. corps changed. The Gáspár division was sent forward to Hort, to form the reserve of the Poeltenberg division, while the Horváth and Liptay brigades, which were also part of the Gáspár division, were sent to
Ecséd to support the right wing of the troops from Hort. The headquarters of the corps and the Weissl column were moved to Csány, where they had to wait for the detachment sent from the III. corps of János Damjanich arrived there, then to march to Hort after the Poeltengerg and Gáspár divisions. Görgei required the two divisions to repulse any enemy attack in the region between Hort and Hatvan. He did not give an order to attack, because he was not sure about the Austrian troops' strength, and he was informed that in
Apc, Jobbágyi and
Csécse were stationing 5000-6000 soldiers strong enemy detachments. Also according to the overall campaign plan the VII. corps job was not offensive, but to attract Windisch-Grätz's attention to them, enabling the other corps to encircle the Austrian troops. So an attack against the Austrians was not among their duties. ==Battle==