Trinity Is Still My Name (Italian: ...continuavano a chiamarlo Trinità ) is a 1971 Italian Spaghetti Western comedy film directed by Enzo Barboni.
 Starring Terence Hill and Bud Spencer, it is a sequel to "They Call Me Trinity" (1970).
... All The Way, Boys!
 (aka Italian: "... Più forte ragazzi!"
 and Plane Crazy) is a 1973 Italian adventure film directed by Giuseppe Colizzi.
 The film stars the popular quasi-comedy team of Terence Hill and Bud Spencer.
 The duo, known as “The Trinity Boys,” had made more than 20 films together, most in the Spaghetti Western genre, but "... All The Way, Boys!"
 was the first film set in a modern context, although many other slapstick elements of the earlier films were carried over.
Sons of Trinity (Italian: Trinità & Bambino... e adesso tocca a noi, also known as "Trinity & Babyface" and "Trinity & Bambino: The Legend Lives On") is a 1995 Italian spaghetti western.
 The film was intended to be a continuation of the Trinity series starring Terence Hill and Bud Spencer, but although it was directed and produced by the same people as the original film, it failed to attract any interest in the audience.
 It was the last film directed by Enzo Barboni.
They Call Me Trinity (Italian: Lo chiamavano Trinità... ) is a 1970 Italian Spaghetti Western comedy film directed by Enzo Barboni and starring Terence Hill and Bud Spencer.
Miami Supercops (Italian: Miami Supercops (I poliziotti dell'8ª strada) ) is a 1985 Italian action comedy starring the comedy team of Terence Hill and Bud Spencer.
 It was the last "buddy cop"-film by Hill/Spencer and their final non-Western film together.
Boot Hill (Italian: La collina degli stivali ) is a 1969 Italian Spaghetti Western film starring Terence Hill and Bud Spencer.
 This film is the last one in a trilogy that started with "God Forgives... I Don't!
" (1967), followed by "Ace High" (1968).
Carlo Pedersoli (31 October 1929 – 27 June 2016), professionally known as Bud Spencer, was an Italian actor, professional swimmer and water polo player.
 He is known for action-comedy roles with his long-time film partner Terence Hill.
 The duo "garnered world acclaim and attracted millions to theater seats".
 Spencer and Hill appeared in, produced and directed over 20 films together.
Aaliyah is the third and final studio album by American R&B singer Aaliyah.
 After raising her profile with hit soundtrack singles during the late 1990s, the singer started to work on the album in 1998, but rescheduled its recording around her developing film career.
 She resumed recording in 2000 at Sing Sing Studios in Australia, where she shot her role for the 2002 film "Queen of the Damned" during the day and recorded songs at night.
 Aaliyah worked primarily with Blackground Records' in-house crew of writers and producers, including Bud'da, J. Dub, Rapture, and Eric Seats, as well as longtime collaborator Timbaland.
Troublemakers (Italian: Botte di Natale , also known as "The Fight Before Christmas") is a 1994 spaghetti western comedy film.
 It is the last pairing of Terence Hill (who also directed) and Bud Spencer.
Superfantagenio (also known as "Aladin") is a 1986 Italian family comedy film starring Bud Spencer as the Genie and Luca Venantini as Aladdin, and with Spencer's daughter Diamy participating in a secondary role as Aladdin's love interest.

Question: Troublemakers was the last Western in which Bud Spencer paired with which longtime collaborator?
Answer: Terence Hill