Answer: No.
“Finally, one cannot consider as schismatics those who refuse to obey the Roman Pontiff because they would hold his person suspect or, because of widespread rumors, doubtfully elected (as happened after the election of Urban VI), or who would resist him as a civil authority and not as pastor of the Church.”
(Wernz-Vidal, Ius Canonicum [Rome: Gregorian 1937], Vol. 7, No. 398)
Original Latin:
