Ok here's one for you. I will start with hard clues and then progress to easier ones if you are still stuck.

Who am I and why am I remembered?

1st clue:

My last Chief of Staff was General Sandalov.

Originally Posted by Doppleganger

Ok here's one for you. I will start with hard clues and then progress to easier ones if you are still stuck.

Who am I and why am I remembered?

1st clue:

My last Chief of Staff was General Sandalov.

Umm you are the 4th Ukrainian Front?

Incorrect. I'm looking for an individual not a formation.

Doppleganger

Since Sandalov was chief of staff for 7 different formations (with presumably 7 different commanders) between 1940 and 1946 you would have to supply more information as far as I am concerned.

Ok.

2nd clue:

I was involved in fighting near Solnechnogorsk.

Something of a guess

Konstantin Konstantinovich Rokossovskii Marshal of Soviet Union was
Commanding Officer of the 16th Army around this area in 41-42.

Good guess Perseus but incorrect.

Keep 'em coming.

Originally Posted by Doppleganger

Ok here's one for you. I will start with hard clues and then progress to easier ones if you are still stuck.

Who am I and why am I remembered?

1st clue:

My last Chief of Staff was General Sandalov.

Ok how about Ivan Stepanovich Konev?
Hard to tell what he was most remembered for probably actions at Kursk or possibly role in the defence of Moscow..

Nope it wasn't Konev.

3rd clue:

I was not active in the Red Army after the spring of 1942.

Originally Posted by Doppleganger

Nope it wasn't Konev.

3rd clue:

I was not active in the Red Army after the spring of 1942.

General Vlasov