37_a_kyoto_1
It is thought to be because the Kano School that ruled painting circles at the time venerated him as a master, and feudal lords wanted to have Sesshu's artwork.

0037_0002__is is 0037_0003__thought thought 0037_0002__is->0037_0003__thought [scope] 0037_0001__It it 0037_0003__thought->0037_0001__It [arg1] 0037_0006__because because 0037_0003__thought->0037_0006__because [prd] staz_0037_5019 * 0037_0003__thought->staz_0037_5019 [arg0] 0037_0005__be be 0037_0006__because->0037_0005__be [scope] 0037_0023__and and 0037_0006__because->0037_0023__and [restriction] z_0037_5004 _ 0037_0005__be->z_0037_5004 [arg0] 0037_0017__venerated venerated 0037_0023__and->0037_0017__venerated [conj1] 0037_0026__wanted wanted 0037_0023__and->0037_0026__wanted [conj2] 0037_0011__ruled ruled 0037_0007__the_0037_0008__Kano_0037_0009__School the_kano_school 0037_0011__ruled->0037_0007__the_0037_0008__Kano_0037_0009__School [arg0] 0037_0012__painting_0037_0013__circles painting_circles 0037_0011__ruled->0037_0012__painting_0037_0013__circles [arg1] 0037_0015__the_0037_0016__time the_time 0037_0011__ruled->0037_0015__the_0037_0016__time at[nim] 0037_0017__venerated->0037_0007__the_0037_0008__Kano_0037_0009__School [arg0] 0037_0018__him him 0037_0017__venerated->0037_0018__him [arg1] 0037_0020__a_0037_0021__master a_master 0037_0017__venerated->0037_0020__a_0037_0021__master as[prd] 0037_0025__lords lords 0037_0026__wanted->0037_0025__lords [arg0] 0037_0028__have have 0037_0026__wanted->0037_0028__have [arg1] 0037_0024__feudal feudal 0037_0025__lords->0037_0024__feudal [attrib] 0037_0028__have->0037_0025__lords [arg0] 0037_0031__artwork artwork 0037_0028__have->0037_0031__artwork [arg1] 0037_0029__Sesshu sesshu 0037_0031__artwork->0037_0029__Sesshu [gen]
arc(r_0037_0002__is,r_0037_0003__thought,keep_scope).
arc(r_0037_0003__thought,r_0037_0001__It,arg1).
arc(r_0037_0003__thought,r_0037_0006__because,prd).
arc(r_0037_0003__thought,star_z_0037_5019,arg0).
arc(r_0037_0005__be,z_0037_5004,arg0).
arc(r_0037_0006__because,r_0037_0005__be,scope_).
arc(r_0037_0006__because,r_0037_0023__and,restriction_).
arc(r_0037_0011__ruled,r_0037_0007__the_r_0037_0008__Kano_r_0037_0009__School,arg0).
arc(r_0037_0011__ruled,r_0037_0012__painting_r_0037_0013__circles,arg1).
arc(r_0037_0011__ruled,r_0037_0015__the_r_0037_0016__time,r_0037_0014__at__nim).
arc(r_0037_0017__venerated,r_0037_0007__the_r_0037_0008__Kano_r_0037_0009__School,arg0).
arc(r_0037_0017__venerated,r_0037_0018__him,arg1).
arc(r_0037_0017__venerated,r_0037_0020__a_r_0037_0021__master,r_0037_0019__as__prd).
arc(r_0037_0023__and,r_0037_0017__venerated,coord_conj1).
arc(r_0037_0023__and,r_0037_0026__wanted,coord_conj2).
arc(r_0037_0025__lords,r_0037_0024__feudal,attrib).
arc(r_0037_0026__wanted,r_0037_0025__lords,arg0).
arc(r_0037_0026__wanted,r_0037_0028__have,arg1).
arc(r_0037_0028__have,r_0037_0025__lords,arg0).
arc(r_0037_0028__have,r_0037_0031__artwork,arg1).
arc(r_0037_0031__artwork,r_0037_0029__Sesshu,gen).


IP-MAT NP-SBJ PRO It BEP;~cat_Ve_passive_ is IP-PPL-CAT NP-LGS * VVN;~Cn.t thought IP-INF-PRD TO to BE;~I be PP-SCON P-CONN because IP-ADV ILYR ILYR NP-SBJ D the NPR Kano NPR School IP-REL C that NP-SBJ *T* VBD;~Tn ruled NP-OB1 N painting NS circles PP-NIM P-ROLE at NP D the N time VBD;~Cn.n/a venerated NP-OB1 PRO him PP-PRD P-ROLE as NP D a N master PUNC , CONJP CONJ and ILYR NP-SBJ ADJP ADJ feudal NS lords VBD;~Tt wanted IP-INF-OB1 TO to HV;~Tn have NP-OB1 NP-GEN NPR Sesshu GENM 's N artwork PUNC .
( (IP-MAT (NP-SBJ (PRO It;{it}))
          (BEP;~cat_Ve_passive_ is;{be})
          (IP-PPL-CAT (NP-LGS *)
                      (VVN;~Cn.t thought;{think})
                      (IP-INF-PRD (TO to;{to})
                                  (BE;~I be;{be})
                                  (PP-SCON (P-CONN because;{because})
                                           (IP-ADV (ILYR (ILYR (NP-SBJ (D the;{the})
                                                                       (NPR Kano;{Kano})
                                                                       (NPR School;{School})
                                                                       (IP-REL (C that;{that})
                                                                               (NP-SBJ *T*)
                                                                               (VBD;~Tn ruled;{rule})
                                                                               (NP-OB1 (N painting;{painting})
                                                                                       (NS circles;{circle}))
                                                                               (PP-NIM (P-ROLE at;{at})
                                                                                       (NP (D the;{the})
                                                                                           (N time;{time})))))
                                                               (VBD;~Cn.n/a venerated;{venerate[as]})
                                                               (NP-OB1;{SESSHU} (PRO him;{he}))
                                                               (PP-PRD (P-ROLE as;{as})
                                                                       (NP (D a;{a})
                                                                           (N master;{master}))))
                                                         (PUNC ,)
                                                         (CONJP (CONJ and;{and})
                                                                (ILYR (NP-SBJ (ADJP (ADJ feudal;{feudal}))
                                                                              (NS lords;{lord}))
                                                                      (VBD;~Tt wanted;{want})
                                                                      (IP-INF-OB1 (TO to;{to})
                                                                                  (HV;~Tn have;{have})
                                                                                  (NP-OB1 (NP-GEN;{SESSHU} (NPR Sesshu;{Sesshu})
                                                                                                           (GENM <apos>s))
                                                                                          (N artwork;{artwork}))))))))))
          (PUNC .))
  (ID 37_a_kyoto_1;BDS_00001;37))