"TYW Light Cavalry" Topic

Were there any other kinds of light cavalry employed by the belligerents other than sword and pistol armed croat companies (for example, lance armed hungarian cavalry, polish cavalry or cossacks)?

The Imperial army employed Croats, Hungarians and Poles who for the most part were armed in the same style which was saber and carbine togher with some but not all men having expensive pistols as well as esoteric weapons such as warhammers, panzerstecker and so on.

The Imperial army also employed the Lisowczycy who may have used more esoteric arms including bows as they were recruited in existing form rather than raised according to Imperial regulations.

The Catholic Leauge & the Bavarians employed Croats as well,again armed with saber and carbine rather than more esoteric weapons.

The Swedes employed a regiment of Poles in the 1640's though very little is known about them.

True "Cossacks" were foot soldiers rather than cavalry in this period and are not to be confused with the Polish cossack-style cavalry which was recruited from native Poles and Lithuanians.

Thank you! Are there any mentions of polish or hungarian units using lances? Also, what was the name of this polish unit employed by the Swedish?

Polish units didn't use lances, as Imperials only enlist light cavalry (cossack style cavalry/Lisowczycy). There was a plan to enlist large regiment of famous winged hussars (husaria) but it was cancelled.
Polish regiment employed by Swedes was just called Polish ;) In army lists published by Julius Mankell is mentioned as 'Pohlackarne' and 'Polackar' and have 8 companies.

'Pohlackarne' and 'Polackar'

Which translates respectively as "the Poles" and "Poles".

And that's why I wrote that Polish regiment was just called Polish ;)

Polish Winged Hussars used lances – though these were/are classed as heavy. Still I mention them simply because they are just so pretty on a table.

Polish "Petyhorcy" carried a 3-4 meter spear, sabre, two pistols, etc. I have two references, one listing these guys as light and the other as medium, so who knows.

Kadrinazi, you mentioned "cossack style cavalry", but didn't those (on the XVIII Century, at least), fight with light lances/spears?
And one last question about the swedish regiment. Is it known that they were a light cavalry one, or is there a possibility that they were a regular cavalry regiment composed of polish soldiers?

No, lances (like rohatyna) were rarely used until 60's and 70's. Petyhorcy used either rohatyna or half-kopia (shorter version of husaria's lance) but that unit can be seen only at the beginning of 17th century (until give or take 1618) and then it reappeared around 60's, mostly in Lithuanian army.