In the spring of 1426, Philippa was sent to Sweden by Eric where she summoned the Swedish council in Vadstena and managed to secure support and funds for the Dano-Hanseatic War (1426–35) despite the Swedish opposition to this war.
Pada musim semi tahun 1426, Philippa dikirim ke Swedia oleh Erik, dia memanggil Konsili Swedia di Vadstena dan berhasil mendapatkan dukungan dan dana untuk Pertempuran Denmark-Hansa (1426–35) meskipun ada oposisi Swedia terhadap perang ini.