I finally looked in closer detail than ever into a vexing issue in
Jewish genealogy that I know others may wish to chime against but
I'm just offering my opinions: The MaHaRaM Mi Padua was the son of
Rabbi Yitchak Katznelbogen (of Prague) also called Rabbi Yitchak
(Katznelbogen) (of Katzenelenbogen) in turn he was the soninlaw of
Rabbi Yechiel Luria of Brisk brother of Rabbi Yochanan Luria of
Worms who was the author of Sefer Hadracha and son of Rabbi Aharon
Luria of Alsace.

from this point on there is controversy. The longest version which I

have advocated without vouching for the names and appellations or
denying other possible connections to Rabbi Matisyahu Treves goes
like this: Rabbi Aharon Luria of Alsace was the husband of a woman
named Miriam and son of a Rabbi Nathaniel Luria the son of a Rabbi
Yechiel Luria also known Rabbi Yehuda Luria he was the son of Rabbi
Shimshon (Luria) (of Erfurt) husband of a woman called Miriam the
daughter of Rabbi Shlomo Spira of Heilbronn also called Rabbi Shlomo
Spira of Spira the son of Rabbi Shmuel Spira of Spira whose wife was
the daughter of Rabbi Matisyahu Treves (of Provence) also called
Rabbi Matisyahu Treves (of Paris) the father of Rabbi Yosef Treves
of Paris and the son of Rabbi Yosef (Treves) (the Great) of
Marseilles >from the family of Rabbeinu Yehuda Sir Leon of Paris who
is also known simply as Rabbeinu Yehuda of Paris (when speaking of
him amongst those involved in political activities on behalf of the
Jews). He was the son of Rabbeinu Yitzchak the son of Rabbeinu
Yehuda of Paris (the other one naturally).

Competing versions can dwindle the above tremendously when combined
and say say instead: "Rabbi Aharon Luria of Alsace was the son of
Rabbi Nathaniel Luria the son of Rabbi Yechiel Luria and some say
his name was Rabbi Yehuda Luria, his father in turn was Rabbi
Shimshon Luria who was not identical with Rabbi Shimshon (Luria) (of
Erfurt) though both were be >from the same family. Rabbi Aharon
Luria of Alsace married Miriam daughter of Rabbi Shlomo Spira or
Rabbi Shmuel Spira; Rabbi Shmuel Spira's son for sure being called
Rabbi Shlomo Spira. Their stories got mixed up because both for
short can be called R"SH. Either Rabbi Shmuel Spira or Rabbi Shlomo
Spira married the daughter of Rabbi Matisyahu Treves who was not
known as Rabbi Matisyahu Treves (of Provence) or Rabbi Matisyahu
Treves (of Paris). It's said Rabbi Matisyahu Treves had lived in
Spain; learning there and returning to France once an expulsion
decree against the Jews was lifted. He was the son of Rabbi Yosef
(Treves) (the Great) , Av Bais Din of Paris and so should not be
called Rabbi Yosef (Treves) (the Great) of Marseilles. Rabbi Yosef
(Treves) (the Great) was >from the family of Rabbeinu Yehuda Sir Leon
of Paris known simply as Rabbeinu Yehuda of Paris son of Rabbeinu
Yitzchak son of Rabbeinu Yehuda of Paris."

With repeating names and places and common events and confusion of
generations I think that a longer version got cut shorter.

Yisrael Asper