The Illinois Parentage Summons is a court document used to establish legal parentage in the state of Illinois. It is a summons issued by the court to the respondent, ordering them to appear in court and answer a petition for determination of parentage. There are two types of Illinois Parentage Summons: the Summons to Putative Father and the Summons to Respondent. The Summons to Putative Father is issued to a man who may be the father of a child but who has not been legally established as the father. The Summons to Respondent is issued to anyone who has been named as a respondent in a petition for determination of parentage. Both summonses require the respondent to appear in court to answer the petition. The Illinois Parentage Summons is an important step in establishing legal parentage in the state of Illinois.