In addition to Titus as the prince in v. 26, it can also be considered to be Christ, insofar as He is the only one identified as a prince in the passage. His people were both the Romans, whom He used as His instruments of judgment and destruction; and the Jews themselves, whom contemporary Jewish historians acknowledge were responsible for as much of the carnage as the Romans.
No Titus was not the "prince" in lower case, this is a future "he"
You will closely note "Messiah The Prince" upper case "Prince" deity, Jesus Christ
Lower case "prince" not deity future antichrist.
The prince will be the man of sin/antichrist, he will cause the future abomination of desolation as seen in
Matthew 24:15
prince, he
Daniel 9:25-27
25 Know therefore and understand, that from the going forth of the commandment to restore and to build Jerusalem unto the Messiah the Prince shall be seven weeks, and threescore and two weeks: the street shall be built again, and the wall, even in troublous times.
26 And after threescore and two weeks shall Messiah be cut off, but not for himself: and the people of the prince that shall come shall destroy the city and the sanctuary; and the end thereof shall be with a flood, and unto the end of the war desolations are determined.
27 And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make it desolate, even until the consummation, and that determined shall be poured upon the desolate.
Did Jesus Christ return and destroy your proclaimed Titus? Smiles
2 Thessalonians 2:3-8
3 Let no man deceive you by any means: for that day shall not come, except there come a falling away first, and that man of sin be revealed, the son of perdition;
4 Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
5 Remember ye not, that, when I was yet with you, I told you these things?
6 And now ye know what withholdeth that he might be revealed in his time.
7 For the mystery of iniquity doth already work: only he who now letteth will let, until he be taken out of the way.
8 then shall that Wicked be revealed, whom the Lord shall consume with the spirit of his mouth, and shall
destroy with the brightness of his coming: